diff --git a/inst/reveal.js-4.6.1/examples/500-slides.html b/inst/reveal.js-4.6.1/examples/500-slides.html
new file mode 100644
index 0000000..2270c74
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/500-slides.html
@@ -0,0 +1,526 @@
+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - 500 slides</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/black.css">
+	</head>
+
+	<body>
+		<div class="reveal">
+			<div class="slides">
+				<section><h1>1</h1></section>
+				<section><h1>2</h1></section>
+				<section><h1>3</h1></section>
+				<section><h1>4</h1></section>
+				<section><h1>5</h1></section>
+				<section><h1>6</h1></section>
+				<section><h1>7</h1></section>
+				<section><h1>8</h1></section>
+				<section><h1>9</h1></section>
+				<section><h1>10</h1></section>
+				<section><h1>11</h1></section>
+				<section><h1>12</h1></section>
+				<section><h1>13</h1></section>
+				<section><h1>14</h1></section>
+				<section><h1>15</h1></section>
+				<section><h1>16</h1></section>
+				<section><h1>17</h1></section>
+				<section><h1>18</h1></section>
+				<section><h1>19</h1></section>
+				<section><h1>20</h1></section>
+				<section><h1>21</h1></section>
+				<section><h1>22</h1></section>
+				<section><h1>23</h1></section>
+				<section><h1>24</h1></section>
+				<section><h1>25</h1></section>
+				<section><h1>26</h1></section>
+				<section><h1>27</h1></section>
+				<section><h1>28</h1></section>
+				<section><h1>29</h1></section>
+				<section><h1>30</h1></section>
+				<section><h1>31</h1></section>
+				<section><h1>32</h1></section>
+				<section><h1>33</h1></section>
+				<section><h1>34</h1></section>
+				<section><h1>35</h1></section>
+				<section><h1>36</h1></section>
+				<section><h1>37</h1></section>
+				<section><h1>38</h1></section>
+				<section><h1>39</h1></section>
+				<section><h1>40</h1></section>
+				<section><h1>41</h1></section>
+				<section><h1>42</h1></section>
+				<section><h1>43</h1></section>
+				<section><h1>44</h1></section>
+				<section><h1>45</h1></section>
+				<section><h1>46</h1></section>
+				<section><h1>47</h1></section>
+				<section><h1>48</h1></section>
+				<section><h1>49</h1></section>
+				<section><h1>50</h1></section>
+				<section><h1>51</h1></section>
+				<section><h1>52</h1></section>
+				<section><h1>53</h1></section>
+				<section><h1>54</h1></section>
+				<section><h1>55</h1></section>
+				<section><h1>56</h1></section>
+				<section><h1>57</h1></section>
+				<section><h1>58</h1></section>
+				<section><h1>59</h1></section>
+				<section><h1>60</h1></section>
+				<section><h1>61</h1></section>
+				<section><h1>62</h1></section>
+				<section><h1>63</h1></section>
+				<section><h1>64</h1></section>
+				<section><h1>65</h1></section>
+				<section><h1>66</h1></section>
+				<section><h1>67</h1></section>
+				<section><h1>68</h1></section>
+				<section><h1>69</h1></section>
+				<section><h1>70</h1></section>
+				<section><h1>71</h1></section>
+				<section><h1>72</h1></section>
+				<section><h1>73</h1></section>
+				<section><h1>74</h1></section>
+				<section><h1>75</h1></section>
+				<section><h1>76</h1></section>
+				<section><h1>77</h1></section>
+				<section><h1>78</h1></section>
+				<section><h1>79</h1></section>
+				<section><h1>80</h1></section>
+				<section><h1>81</h1></section>
+				<section><h1>82</h1></section>
+				<section><h1>83</h1></section>
+				<section><h1>84</h1></section>
+				<section><h1>85</h1></section>
+				<section><h1>86</h1></section>
+				<section><h1>87</h1></section>
+				<section><h1>88</h1></section>
+				<section><h1>89</h1></section>
+				<section><h1>90</h1></section>
+				<section><h1>91</h1></section>
+				<section><h1>92</h1></section>
+				<section><h1>93</h1></section>
+				<section><h1>94</h1></section>
+				<section><h1>95</h1></section>
+				<section><h1>96</h1></section>
+				<section><h1>97</h1></section>
+				<section><h1>98</h1></section>
+				<section><h1>99</h1></section>
+				<section><h1>100</h1></section>
+				<section><h1>101</h1></section>
+				<section><h1>102</h1></section>
+				<section><h1>103</h1></section>
+				<section><h1>104</h1></section>
+				<section><h1>105</h1></section>
+				<section><h1>106</h1></section>
+				<section><h1>107</h1></section>
+				<section><h1>108</h1></section>
+				<section><h1>109</h1></section>
+				<section><h1>110</h1></section>
+				<section><h1>111</h1></section>
+				<section><h1>112</h1></section>
+				<section><h1>113</h1></section>
+				<section><h1>114</h1></section>
+				<section><h1>115</h1></section>
+				<section><h1>116</h1></section>
+				<section><h1>117</h1></section>
+				<section><h1>118</h1></section>
+				<section><h1>119</h1></section>
+				<section><h1>120</h1></section>
+				<section><h1>121</h1></section>
+				<section><h1>122</h1></section>
+				<section><h1>123</h1></section>
+				<section><h1>124</h1></section>
+				<section><h1>125</h1></section>
+				<section><h1>126</h1></section>
+				<section><h1>127</h1></section>
+				<section><h1>128</h1></section>
+				<section><h1>129</h1></section>
+				<section><h1>130</h1></section>
+				<section><h1>131</h1></section>
+				<section><h1>132</h1></section>
+				<section><h1>133</h1></section>
+				<section><h1>134</h1></section>
+				<section><h1>135</h1></section>
+				<section><h1>136</h1></section>
+				<section><h1>137</h1></section>
+				<section><h1>138</h1></section>
+				<section><h1>139</h1></section>
+				<section><h1>140</h1></section>
+				<section><h1>141</h1></section>
+				<section><h1>142</h1></section>
+				<section><h1>143</h1></section>
+				<section><h1>144</h1></section>
+				<section><h1>145</h1></section>
+				<section><h1>146</h1></section>
+				<section><h1>147</h1></section>
+				<section><h1>148</h1></section>
+				<section><h1>149</h1></section>
+				<section><h1>150</h1></section>
+				<section><h1>151</h1></section>
+				<section><h1>152</h1></section>
+				<section><h1>153</h1></section>
+				<section><h1>154</h1></section>
+				<section><h1>155</h1></section>
+				<section><h1>156</h1></section>
+				<section><h1>157</h1></section>
+				<section><h1>158</h1></section>
+				<section><h1>159</h1></section>
+				<section><h1>160</h1></section>
+				<section><h1>161</h1></section>
+				<section><h1>162</h1></section>
+				<section><h1>163</h1></section>
+				<section><h1>164</h1></section>
+				<section><h1>165</h1></section>
+				<section><h1>166</h1></section>
+				<section><h1>167</h1></section>
+				<section><h1>168</h1></section>
+				<section><h1>169</h1></section>
+				<section><h1>170</h1></section>
+				<section><h1>171</h1></section>
+				<section><h1>172</h1></section>
+				<section><h1>173</h1></section>
+				<section><h1>174</h1></section>
+				<section><h1>175</h1></section>
+				<section><h1>176</h1></section>
+				<section><h1>177</h1></section>
+				<section><h1>178</h1></section>
+				<section><h1>179</h1></section>
+				<section><h1>180</h1></section>
+				<section><h1>181</h1></section>
+				<section><h1>182</h1></section>
+				<section><h1>183</h1></section>
+				<section><h1>184</h1></section>
+				<section><h1>185</h1></section>
+				<section><h1>186</h1></section>
+				<section><h1>187</h1></section>
+				<section><h1>188</h1></section>
+				<section><h1>189</h1></section>
+				<section><h1>190</h1></section>
+				<section><h1>191</h1></section>
+				<section><h1>192</h1></section>
+				<section><h1>193</h1></section>
+				<section><h1>194</h1></section>
+				<section><h1>195</h1></section>
+				<section><h1>196</h1></section>
+				<section><h1>197</h1></section>
+				<section><h1>198</h1></section>
+				<section><h1>199</h1></section>
+				<section><h1>200</h1></section>
+				<section><h1>201</h1></section>
+				<section><h1>202</h1></section>
+				<section><h1>203</h1></section>
+				<section><h1>204</h1></section>
+				<section><h1>205</h1></section>
+				<section><h1>206</h1></section>
+				<section><h1>207</h1></section>
+				<section><h1>208</h1></section>
+				<section><h1>209</h1></section>
+				<section><h1>210</h1></section>
+				<section><h1>211</h1></section>
+				<section><h1>212</h1></section>
+				<section><h1>213</h1></section>
+				<section><h1>214</h1></section>
+				<section><h1>215</h1></section>
+				<section><h1>216</h1></section>
+				<section><h1>217</h1></section>
+				<section><h1>218</h1></section>
+				<section><h1>219</h1></section>
+				<section><h1>220</h1></section>
+				<section><h1>221</h1></section>
+				<section><h1>222</h1></section>
+				<section><h1>223</h1></section>
+				<section><h1>224</h1></section>
+				<section><h1>225</h1></section>
+				<section><h1>226</h1></section>
+				<section><h1>227</h1></section>
+				<section><h1>228</h1></section>
+				<section><h1>229</h1></section>
+				<section><h1>230</h1></section>
+				<section><h1>231</h1></section>
+				<section><h1>232</h1></section>
+				<section><h1>233</h1></section>
+				<section><h1>234</h1></section>
+				<section><h1>235</h1></section>
+				<section><h1>236</h1></section>
+				<section><h1>237</h1></section>
+				<section><h1>238</h1></section>
+				<section><h1>239</h1></section>
+				<section><h1>240</h1></section>
+				<section><h1>241</h1></section>
+				<section><h1>242</h1></section>
+				<section><h1>243</h1></section>
+				<section><h1>244</h1></section>
+				<section><h1>245</h1></section>
+				<section><h1>246</h1></section>
+				<section><h1>247</h1></section>
+				<section><h1>248</h1></section>
+				<section><h1>249</h1></section>
+				<section><h1>250</h1></section>
+				<section><h1>251</h1></section>
+				<section><h1>252</h1></section>
+				<section><h1>253</h1></section>
+				<section><h1>254</h1></section>
+				<section><h1>255</h1></section>
+				<section><h1>256</h1></section>
+				<section><h1>257</h1></section>
+				<section><h1>258</h1></section>
+				<section><h1>259</h1></section>
+				<section><h1>260</h1></section>
+				<section><h1>261</h1></section>
+				<section><h1>262</h1></section>
+				<section><h1>263</h1></section>
+				<section><h1>264</h1></section>
+				<section><h1>265</h1></section>
+				<section><h1>266</h1></section>
+				<section><h1>267</h1></section>
+				<section><h1>268</h1></section>
+				<section><h1>269</h1></section>
+				<section><h1>270</h1></section>
+				<section><h1>271</h1></section>
+				<section><h1>272</h1></section>
+				<section><h1>273</h1></section>
+				<section><h1>274</h1></section>
+				<section><h1>275</h1></section>
+				<section><h1>276</h1></section>
+				<section><h1>277</h1></section>
+				<section><h1>278</h1></section>
+				<section><h1>279</h1></section>
+				<section><h1>280</h1></section>
+				<section><h1>281</h1></section>
+				<section><h1>282</h1></section>
+				<section><h1>283</h1></section>
+				<section><h1>284</h1></section>
+				<section><h1>285</h1></section>
+				<section><h1>286</h1></section>
+				<section><h1>287</h1></section>
+				<section><h1>288</h1></section>
+				<section><h1>289</h1></section>
+				<section><h1>290</h1></section>
+				<section><h1>291</h1></section>
+				<section><h1>292</h1></section>
+				<section><h1>293</h1></section>
+				<section><h1>294</h1></section>
+				<section><h1>295</h1></section>
+				<section><h1>296</h1></section>
+				<section><h1>297</h1></section>
+				<section><h1>298</h1></section>
+				<section><h1>299</h1></section>
+				<section><h1>300</h1></section>
+				<section><h1>301</h1></section>
+				<section><h1>302</h1></section>
+				<section><h1>303</h1></section>
+				<section><h1>304</h1></section>
+				<section><h1>305</h1></section>
+				<section><h1>306</h1></section>
+				<section><h1>307</h1></section>
+				<section><h1>308</h1></section>
+				<section><h1>309</h1></section>
+				<section><h1>310</h1></section>
+				<section><h1>311</h1></section>
+				<section><h1>312</h1></section>
+				<section><h1>313</h1></section>
+				<section><h1>314</h1></section>
+				<section><h1>315</h1></section>
+				<section><h1>316</h1></section>
+				<section><h1>317</h1></section>
+				<section><h1>318</h1></section>
+				<section><h1>319</h1></section>
+				<section><h1>320</h1></section>
+				<section><h1>321</h1></section>
+				<section><h1>322</h1></section>
+				<section><h1>323</h1></section>
+				<section><h1>324</h1></section>
+				<section><h1>325</h1></section>
+				<section><h1>326</h1></section>
+				<section><h1>327</h1></section>
+				<section><h1>328</h1></section>
+				<section><h1>329</h1></section>
+				<section><h1>330</h1></section>
+				<section><h1>331</h1></section>
+				<section><h1>332</h1></section>
+				<section><h1>333</h1></section>
+				<section><h1>334</h1></section>
+				<section><h1>335</h1></section>
+				<section><h1>336</h1></section>
+				<section><h1>337</h1></section>
+				<section><h1>338</h1></section>
+				<section><h1>339</h1></section>
+				<section><h1>340</h1></section>
+				<section><h1>341</h1></section>
+				<section><h1>342</h1></section>
+				<section><h1>343</h1></section>
+				<section><h1>344</h1></section>
+				<section><h1>345</h1></section>
+				<section><h1>346</h1></section>
+				<section><h1>347</h1></section>
+				<section><h1>348</h1></section>
+				<section><h1>349</h1></section>
+				<section><h1>350</h1></section>
+				<section><h1>351</h1></section>
+				<section><h1>352</h1></section>
+				<section><h1>353</h1></section>
+				<section><h1>354</h1></section>
+				<section><h1>355</h1></section>
+				<section><h1>356</h1></section>
+				<section><h1>357</h1></section>
+				<section><h1>358</h1></section>
+				<section><h1>359</h1></section>
+				<section><h1>360</h1></section>
+				<section><h1>361</h1></section>
+				<section><h1>362</h1></section>
+				<section><h1>363</h1></section>
+				<section><h1>364</h1></section>
+				<section><h1>365</h1></section>
+				<section><h1>366</h1></section>
+				<section><h1>367</h1></section>
+				<section><h1>368</h1></section>
+				<section><h1>369</h1></section>
+				<section><h1>370</h1></section>
+				<section><h1>371</h1></section>
+				<section><h1>372</h1></section>
+				<section><h1>373</h1></section>
+				<section><h1>374</h1></section>
+				<section><h1>375</h1></section>
+				<section><h1>376</h1></section>
+				<section><h1>377</h1></section>
+				<section><h1>378</h1></section>
+				<section><h1>379</h1></section>
+				<section><h1>380</h1></section>
+				<section><h1>381</h1></section>
+				<section><h1>382</h1></section>
+				<section><h1>383</h1></section>
+				<section><h1>384</h1></section>
+				<section><h1>385</h1></section>
+				<section><h1>386</h1></section>
+				<section><h1>387</h1></section>
+				<section><h1>388</h1></section>
+				<section><h1>389</h1></section>
+				<section><h1>390</h1></section>
+				<section><h1>391</h1></section>
+				<section><h1>392</h1></section>
+				<section><h1>393</h1></section>
+				<section><h1>394</h1></section>
+				<section><h1>395</h1></section>
+				<section><h1>396</h1></section>
+				<section><h1>397</h1></section>
+				<section><h1>398</h1></section>
+				<section><h1>399</h1></section>
+				<section><h1>400</h1></section>
+				<section><h1>401</h1></section>
+				<section><h1>402</h1></section>
+				<section><h1>403</h1></section>
+				<section><h1>404</h1></section>
+				<section><h1>405</h1></section>
+				<section><h1>406</h1></section>
+				<section><h1>407</h1></section>
+				<section><h1>408</h1></section>
+				<section><h1>409</h1></section>
+				<section><h1>410</h1></section>
+				<section><h1>411</h1></section>
+				<section><h1>412</h1></section>
+				<section><h1>413</h1></section>
+				<section><h1>414</h1></section>
+				<section><h1>415</h1></section>
+				<section><h1>416</h1></section>
+				<section><h1>417</h1></section>
+				<section><h1>418</h1></section>
+				<section><h1>419</h1></section>
+				<section><h1>420</h1></section>
+				<section><h1>421</h1></section>
+				<section><h1>422</h1></section>
+				<section><h1>423</h1></section>
+				<section><h1>424</h1></section>
+				<section><h1>425</h1></section>
+				<section><h1>426</h1></section>
+				<section><h1>427</h1></section>
+				<section><h1>428</h1></section>
+				<section><h1>429</h1></section>
+				<section><h1>430</h1></section>
+				<section><h1>431</h1></section>
+				<section><h1>432</h1></section>
+				<section><h1>433</h1></section>
+				<section><h1>434</h1></section>
+				<section><h1>435</h1></section>
+				<section><h1>436</h1></section>
+				<section><h1>437</h1></section>
+				<section><h1>438</h1></section>
+				<section><h1>439</h1></section>
+				<section><h1>440</h1></section>
+				<section><h1>441</h1></section>
+				<section><h1>442</h1></section>
+				<section><h1>443</h1></section>
+				<section><h1>444</h1></section>
+				<section><h1>445</h1></section>
+				<section><h1>446</h1></section>
+				<section><h1>447</h1></section>
+				<section><h1>448</h1></section>
+				<section><h1>449</h1></section>
+				<section><h1>450</h1></section>
+				<section><h1>451</h1></section>
+				<section><h1>452</h1></section>
+				<section><h1>453</h1></section>
+				<section><h1>454</h1></section>
+				<section><h1>455</h1></section>
+				<section><h1>456</h1></section>
+				<section><h1>457</h1></section>
+				<section><h1>458</h1></section>
+				<section><h1>459</h1></section>
+				<section><h1>460</h1></section>
+				<section><h1>461</h1></section>
+				<section><h1>462</h1></section>
+				<section><h1>463</h1></section>
+				<section><h1>464</h1></section>
+				<section><h1>465</h1></section>
+				<section><h1>466</h1></section>
+				<section><h1>467</h1></section>
+				<section><h1>468</h1></section>
+				<section><h1>469</h1></section>
+				<section><h1>470</h1></section>
+				<section><h1>471</h1></section>
+				<section><h1>472</h1></section>
+				<section><h1>473</h1></section>
+				<section><h1>474</h1></section>
+				<section><h1>475</h1></section>
+				<section><h1>476</h1></section>
+				<section><h1>477</h1></section>
+				<section><h1>478</h1></section>
+				<section><h1>479</h1></section>
+				<section><h1>480</h1></section>
+				<section><h1>481</h1></section>
+				<section><h1>482</h1></section>
+				<section><h1>483</h1></section>
+				<section><h1>484</h1></section>
+				<section><h1>485</h1></section>
+				<section><h1>486</h1></section>
+				<section><h1>487</h1></section>
+				<section><h1>488</h1></section>
+				<section><h1>489</h1></section>
+				<section><h1>490</h1></section>
+				<section><h1>491</h1></section>
+				<section><h1>492</h1></section>
+				<section><h1>493</h1></section>
+				<section><h1>494</h1></section>
+				<section><h1>495</h1></section>
+				<section><h1>496</h1></section>
+				<section><h1>497</h1></section>
+				<section><h1>498</h1></section>
+				<section><h1>499</h1></section>
+			</div>
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script>
+			Reveal.initialize({
+				transition: 'linear'
+			});
+		</script>
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/assets/beeping.txt b/inst/reveal.js-4.6.1/examples/assets/beeping.txt
new file mode 100644
index 0000000..bf41997
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/assets/beeping.txt
@@ -0,0 +1,2 @@
+Source: https://freesound.org/people/fennelliott/sounds/379419/
+License: CC0 (public domain)
\ No newline at end of file
diff --git a/inst/reveal.js-4.6.1/examples/assets/beeping.wav b/inst/reveal.js-4.6.1/examples/assets/beeping.wav
new file mode 100644
index 0000000..38747a5
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/assets/beeping.wav
Binary files differ
diff --git a/inst/reveal.js-4.6.1/examples/assets/image1.png b/inst/reveal.js-4.6.1/examples/assets/image1.png
new file mode 100644
index 0000000..8747594
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/assets/image1.png
Binary files differ
diff --git a/inst/reveal.js-4.6.1/examples/assets/image2.png b/inst/reveal.js-4.6.1/examples/assets/image2.png
new file mode 100644
index 0000000..6c403a0
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/assets/image2.png
Binary files differ
diff --git a/inst/reveal.js-4.6.1/examples/auto-animate.html b/inst/reveal.js-4.6.1/examples/auto-animate.html
new file mode 100644
index 0000000..199810e
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/auto-animate.html
@@ -0,0 +1,225 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Auto Animate</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/black.css" id="theme">
+		<link rel="stylesheet" href="../plugin/highlight/monokai.css">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+				<section data-auto-animate data-auto-animate-unmatched="fade">
+					<h3>Auto-Animate Example</h3>
+					<p>This will fade out</p>
+					<img src="assets/image1.png" style="height: 100px;">
+					<pre data-id="code"><code data-line-numbers class="hljs" data-trim>
+						function Example() {
+						  const [count, setCount] = useState(0);
+						}
+					</code></pre>
+				</section>
+				<section data-auto-animate data-auto-animate-unmatched="fade">
+					<h3>Auto-Animate Example</h3>
+					<p style="opacity: 0.2; margin-top: 100px;">This will fade out</p>
+					<p>This element is unmatched</p>
+					<img src="assets/image1.png" style="height: 150px;">
+					<pre data-id="code"><code data-line-numbers class="hljs" data-trim>
+						function Example() {
+						  New line!
+						  const [count, setCount] = useState(0);
+						}
+					</code></pre>
+				</section>
+
+				<section data-auto-animate>
+					<p data-id="text-props" style="background: #555; line-height: 1em; letter-spacing: 0em;">Line Height & Letter Spacing</p>
+				</section>
+				<section data-auto-animate>
+					<p data-id="text-props" style="background: #555; line-height: 3em; letter-spacing: 0.2em;">Line Height & Letter Spacing</p>
+				</section>
+
+				<section>
+					<section data-auto-animate>
+						<pre data-id="code"><code data-line-numbers class="hljs" data-trim>
+							import React, { useState } from 'react';
+
+							function Example() {
+							  const [count, setCount] = useState(0);
+
+							  return (
+							    ...
+							  );
+							}
+						</code></pre>
+					</section>
+					<section data-auto-animate>
+						<pre data-id="code"><code data-line-numbers class="hljs" data-trim>
+							function Example() {
+							  const [count, setCount] = useState(0);
+
+							  return (
+							    &lt;div&gt;
+							      &lt;p&gt;You clicked {count} times&lt;/p&gt;
+							      &lt;button onClick={() =&gt; setCount(count + 1)}&gt;
+							        Click me
+							      &lt;/button&gt;
+							    &lt;/div&gt;
+							  );
+							}
+						</code></pre>
+					</section>
+					<section data-auto-animate>
+						<pre data-id="code"><code data-line-numbers class="hljs" data-trim>
+							function Example() {
+							  // A comment!
+							  const [count, setCount] = useState(0);
+
+							  return (
+							    &lt;div&gt;
+							      &lt;p&gt;You clicked {count} times&lt;/p&gt;
+							      &lt;button onClick={() =&gt; setCount(count + 1)}&gt;
+							        Click me
+							      &lt;/button&gt;
+							    &lt;/div&gt;
+							  );
+							}
+						</code></pre>
+					</section>
+				</section>
+
+				<section>
+					<section data-auto-animate>
+						<h3>Swapping list items</h3>
+						<ul>
+							<li>One</li>
+							<li>Two</li>
+							<li>Three</li>
+						</ul>
+					</section>
+					<section data-auto-animate>
+						<h3>Swapping list items</h3>
+						<ul>
+							<li>Two</li>
+							<li>One</li>
+							<li>Three</li>
+						</ul>
+					</section>
+					<section data-auto-animate>
+						<h3>Swapping list items</h3>
+						<ul>
+							<li>Two</li>
+							<li>Three</li>
+							<li>One</li>
+						</ul>
+					</section>
+				</section>
+
+				<section data-auto-animate style="height: 600px">
+					<h3 style="opacity: 0.3; font-size: 18px;">SLIDE 1</h3>
+					<h2 data-id="title" style="margin-top: 260px;">Animate Anything</h2>
+					<div data-id="1" style="background: white; position: absolute; top: 150px; left: 16%; width: 60px; height: 60px;"></div>
+					<div data-id="2" style="background: white; position: absolute; top: 150px; left: 36%; width: 60px; height: 60px;"></div>
+					<div data-id="3" style="background: white; position: absolute; top: 150px; left: 56%; width: 60px; height: 60px;"></div>
+					<div data-id="4" style="background: white; position: absolute; top: 150px; left: 76%; width: 60px; height: 60px;"></div>
+				</section>
+				<section data-auto-animate style="height: 600px">
+					<h3 style="opacity: 0.3; font-size: 18px;">SLIDE 2</h3>
+					<h2 data-id="title" style="margin-top: 500px">With Auto Animate</h2>
+					<div data-id="1" style="background: cyan; position: absolute; bottom: 190px; left: 16%; width: 60px; height: 60px;"></div>
+					<div data-id="2" style="background: magenta; position: absolute; bottom: 190px; left: 36%; width: 60px; height: 160px;"></div>
+					<div data-id="3" style="background: yellow; position: absolute; bottom: 190px; left: 56%; width: 60px; height: 260px;"></div>
+					<div data-id="4" style="background: red; position: absolute; bottom: 190px; left: 76%; width: 60px; height: 360px;"></div>
+				</section>
+				<section data-auto-animate style="height: 600px">
+					<h3 style="opacity: 0.3; font-size: 18px;">SLIDE 3</h3>
+					<h2 data-id="title" style="margin-top: 500px; opacity: 0;">With Auto Animate</h2>
+					<div data-id="1" style="background: cyan; position: absolute; top: 50%; left: 50%; width: 400px; height: 400px; margin: -200px 0 0 -200px; border-radius: 400px;"></div>
+					<div data-id="2" style="background: magenta; position: absolute; top: 50%; left: 50%; width: 300px; height: 300px; margin: -150px 0 0 -150px; border-radius: 400px;"></div>
+					<div data-id="3" style="background: yellow; position: absolute; top: 50%; left: 50%; width: 200px; height: 200px; margin: -100px 0 0 -100px; border-radius: 400px;"></div>
+					<div data-id="4" style="background: red; position: absolute; top: 50%; left: 50%; width: 100px; height: 100px; margin: -50px 0 0 -50px; border-radius: 400px;"></div>
+				</section>
+				<section data-auto-animate style="height: 600px">
+					<h3 style="opacity: 0.3; font-size: 18px;">SLIDE 3</h3>
+					<h2 data-id="title" style="margin-top: 500px; opacity: 0;">With Auto Animate</h2>
+					<div data-id="1" style="background: red; position: absolute; top: 250px; left: 16%; width: 60px; height: 60px;"></div>
+					<div data-id="2" style="background: yellow; position: absolute; top: 250px; left: 36%; width: 60px; height: 60px;"></div>
+					<div data-id="3" style="background: magenta; position: absolute; top: 250px; left: 56%; width: 60px; height: 60px;"></div>
+					<div data-id="4" style="background: cyan; position: absolute; top: 250px; left: 76%; width: 60px; height: 60px;"></div>
+				</section>
+
+				<section data-auto-animate data-auto-animate-id="a">
+					<h2>data-auto-animate-id="a"</h2>
+					<h3>A1</h3>
+				</section>
+				<section data-auto-animate data-auto-animate-id="a">
+					<h2>data-auto-animate-id="a"</h2>
+					<h3>A1</h3>
+					<h3>A2</h3>
+				</section>
+				<section data-auto-animate data-auto-animate-id="b">
+					<h2>data-auto-animate-id="b"</h2>
+					<h3>B1</h3>
+				</section>
+				<section data-auto-animate data-auto-animate-id="b">
+					<h2>data-auto-animate-id="b"</h2>
+					<h3>B1</h3>
+					<h3>B2</h3>
+				</section>
+
+				<section>
+					<section id="stacked-slide-1" data-auto-animate>
+						<a href="#/stacked-slide-1">Slide 1</a><br>
+						<a href="#/stacked-slide-2">Slide 2</a><br>
+						<a href="#/stacked-slide-3">Slide 3</a><br>
+						<a href="#/stacked-slide-4">Slide 4</a><br>
+						<div data-id="anim" style="background: indigo; padding: 8px; width: 50px; height: 50px; position: absolute; left: 0px;">A</div>
+					</section>
+					<section id="stacked-slide-2" data-auto-animate>
+						<a href="#/stacked-slide-1">Slide 1</a><br>
+						<a href="#/stacked-slide-2">Slide 2</a><br>
+						<a href="#/stacked-slide-3">Slide 3</a><br>
+						<a href="#/stacked-slide-4">Slide 4</a><br>
+						<div data-id="anim" style="background: indigo; padding: 8px; width: 50px; height: 50px; position: absolute; left: 25%;">A</div>
+					</section>
+					<section id="stacked-slide-3" data-auto-animate>
+						<a href="#/stacked-slide-1">Slide 1</a><br>
+						<a href="#/stacked-slide-2">Slide 2</a><br>
+						<a href="#/stacked-slide-3">Slide 3</a><br>
+						<a href="#/stacked-slide-4">Slide 4</a><br>
+						<div data-id="anim" style="background: indigo; padding: 8px; width: 50px; height: 50px; position: absolute; left: 50%;">A</div>
+					</section>
+					<section id="stacked-slide-4" data-auto-animate>
+						<a href="#/stacked-slide-1">Slide 1</a><br>
+						<a href="#/stacked-slide-2">Slide 2</a><br>
+						<a href="#/stacked-slide-3">Slide 3</a><br>
+						<a href="#/stacked-slide-4">Slide 4</a><br>
+						<div data-id="anim" style="background: indigo; padding: 8px; width: 50px; height: 50px; position: absolute; left: 75%;">A</div>
+					</section>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script src="../plugin/highlight/highlight.js"></script>
+		<script>
+			Reveal.initialize({
+				center: true,
+				hash: true,
+				plugins: [ RevealHighlight ]
+			});
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/backgrounds.html b/inst/reveal.js-4.6.1/examples/backgrounds.html
new file mode 100644
index 0000000..19d40c3
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/backgrounds.html
@@ -0,0 +1,141 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Backgrounds</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/serif.css" id="theme">
+		<style type="text/css" media="screen">
+			.slides section.has-dark-background,
+			.slides section.has-dark-background h2 {
+				color: #fff;
+			}
+			.slides section.has-light-background,
+			.slides section.has-light-background h2 {
+				color: #222;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section data-background="#00ffff">
+					<h2>data-background: #00ffff</h2>
+				</section>
+
+				<section data-background="#bb00bb">
+					<h2>data-background: #bb00bb</h2>
+				</section>
+
+				<section data-background-color="lightblue">
+					<h2>data-background: lightblue</h2>
+				</section>
+
+				<section>
+					<section data-background="#ff0000">
+						<h2>data-background: #ff0000</h2>
+					</section>
+					<section data-background="rgba(0, 0, 0, 0.2)">
+						<h2>data-background: rgba(0, 0, 0, 0.2)</h2>
+					</section>
+					<section data-background="salmon">
+						<h2>data-background: salmon</h2>
+					</section>
+				</section>
+
+				<section data-background="rgba(0, 100, 100, 0.2)">
+					<section>
+						<h2>Background applied to stack</h2>
+					</section>
+					<section>
+						<h2>Background applied to stack</h2>
+					</section>
+					<section data-background="rgb(66, 66, 66)">
+						<h2>Background applied to slide inside of stack</h2>
+					</section>
+				</section>
+
+				<section data-background-transition="slide" data-background="assets/image1.png">
+					<h2>Background image</h2>
+				</section>
+
+				<section>
+					<section data-background-transition="slide" data-background="assets/image1.png">
+						<h2>Background image</h2>
+					</section>
+					<section data-background-transition="slide" data-background="assets/image1.png">
+						<h2>Background image</h2>
+					</section>
+				</section>
+
+				<section data-background="assets/image2.png" data-background-size="100px" data-background-repeat="repeat" data-background-color="#111">
+					<h2>Background image</h2>
+					<pre>data-background-size="100px" data-background-repeat="repeat" data-background-color="#111"</pre>
+				</section>
+
+				<section data-background="#888888">
+					<h2>Same background twice (1/2)</h2>
+				</section>
+				<section data-background="#888888">
+					<h2>Same background twice (2/2)</h2>
+				</section>
+
+				<section data-background-video="https://s3.amazonaws.com/static.slid.es/site/homepage/v1/homepage-video-editor.mp4,https://s3.amazonaws.com/static.slid.es/site/homepage/v1/homepage-video-editor.webm">
+					<h2>Video background</h2>
+				</section>
+
+				<section data-background-iframe="https://slides.com/news/make-better-presentations/embed?style=hidden&autoSlide=4000">
+					<h2>Iframe background</h2>
+				</section>
+
+				<section>
+					<section data-background="#417203">
+						<h2>Same background twice vertical (1/2)</h2>
+					</section>
+					<section data-background="#417203">
+						<h2>Same background twice vertical (2/2)</h2>
+					</section>
+				</section>
+
+				<section data-background="#934f4d">
+					<h2>Same background from horizontal to vertical (1/3)</h2>
+				</section>
+				<section>
+					<section data-background="#934f4d">
+						<h2>Same background from horizontal to vertical (2/3)</h2>
+					</section>
+					<section data-background="#934f4d">
+						<h2>Same background from horizontal to vertical (3/3)</h2>
+					</section>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script>
+
+			// Full list of configuration options:
+			// https://revealjs.revealjs.com/config/
+			Reveal.initialize({
+				center: true,
+
+				transition: 'linear',
+				// transitionSpeed: 'slow',
+				// backgroundTransition: 'slide'
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/barebones.html b/inst/reveal.js-4.6.1/examples/barebones.html
new file mode 100644
index 0000000..50adcb8
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/barebones.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+		<title>reveal.js - Barebones</title>
+		<link rel="stylesheet" href="../dist/reveal.css">
+	</head>
+	<body>
+
+		<div class="reveal">
+			<div class="slides">
+
+				<section>
+					<h2>Barebones Presentation</h2>
+					<p>This example contains the bare minimum includes and markup required to run a reveal.js presentation.</p>
+				</section>
+
+				<section>
+					<h2>No Theme</h2>
+					<p>There's no theme included, so it will fall back on browser defaults.</p>
+				</section>
+
+			</div>
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script>
+			Reveal.initialize();
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/layout-helpers.html b/inst/reveal.js-4.6.1/examples/layout-helpers.html
new file mode 100644
index 0000000..a129811
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/layout-helpers.html
@@ -0,0 +1,160 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Layout Helpers</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/white.css" id="theme">
+		<link rel="stylesheet" href="../plugin/highlight/monokai.css">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>Layout Helper Examples</h2>
+					<ul>
+						<li><a href="#/fit-text">Big Text</a></li>
+						<li><a href="#/stretch">Stretch</a></li>
+						<li><a href="#/stack">Stack</a></li>
+						<li><a href="#/hstack">HStack</a></li>
+						<li><a href="#/vstack">VStack</a></li>
+					</ul>
+				</section>
+
+				<section id="fit-text">
+					<h2>Fit Text</h2>
+					<p>Resizes text to be as large as possible within its container.</p>
+					<pre><code class="html" data-trim data-line-numbers>
+					  <h2 class="r-fit-text">FIT</h2>
+					</code></pre>
+				</section>
+
+				<section>
+					<h2 class="r-fit-text">FIT</h2>
+				</section>
+
+				<section>
+					<h2 class="r-fit-text">HELLO WORLD</h2>
+					<h2 class="r-fit-text">BOTH THESE TITLES USE FIT-TEXT</h2>
+				</section>
+
+				<section id="stretch">
+					<h2>Stretch</h2>
+					<p>Makes an element as tall as possible while remaining within the slide bounds.</p>
+					<pre><code class="html" data-trim data-line-numbers>
+					  <h2>Stretch Example</h2>
+					  <img src="assets/image2.png" class="r-stretch">
+					  <p>Image byline</p>
+					</code></pre>
+				</section>
+
+				<section>
+					<h2>Stretch Example</h2>
+					<img src="assets/image2.png" class="r-stretch">
+					<p>Image byline</p>
+				</section>
+
+				<section id="stack">
+					<h2>Stack</h2>
+					<p>Stacks multiple elements on top of each other, for use with fragments.</p>
+					<pre><code class="html" data-trim data-line-numbers>
+					  <div class="r-stack">
+					    &lt;img class="fragment" width="450" height="300" src="..."&gt;
+					    &lt;img class="fragment" width="300" height="450" src="..."&gt;
+					    &lt;img class="fragment" width="400" height="400" src="..."&gt;
+					  </div>
+					</code></pre>
+				</section>
+
+				<section>
+					<h2>Stack Example</h2>
+					<div class="r-stack">
+						<p class="fragment fade-in-then-out">One</p>
+						<p class="fragment fade-in-then-out">Two</p>
+						<p class="fragment fade-in-then-out">Three</p>
+						<p class="fragment fade-in-then-out">Four</p>
+					</div>
+					<div class="r-stack">
+						<img src="https://placekitten.com/450/300" width="450" height="300" class="fragment">
+						<img src="https://placekitten.com/300/450" width="300" height="450" class="fragment">
+						<img src="https://placekitten.com/400/400" width="400" height="400" class="fragment">
+					</div>
+				</section>
+
+				<section>
+					<h2>Stack Example</h2>
+					<p>fade-in-then-out fragments</p>
+					<div class="r-stack">
+						<img src="https://placekitten.com/450/300" width="450" height="300" class="fragment fade-in-then-out">
+						<img src="https://placekitten.com/300/450" width="300" height="450" class="fragment fade-in-then-out">
+						<img src="https://placekitten.com/400/400" width="400" height="400" class="fragment fade-in-then-out">
+					</div>
+				</section>
+
+				<section id="hstack">
+					<h2>HStack</h2>
+					<p>Stacks multiple elements horizontally.</p>
+					<pre><code class="html" data-trim data-line-numbers>
+					  <div class="r-hstack">
+					    &lt;img width="450" height="300" src="..."&gt;
+					    &lt;img width="300" height="450" src="..."&gt;
+					    &lt;img width="400" height="400" src="..."&gt;
+					  </div>
+					</code></pre>
+				</section>
+
+				<section data-auto-animate>
+					<h2>HStack Example</h2>
+					<div class="r-hstack">
+						<p style="padding: 0.50em; background: #eee; margin: 0.25em">One</p>
+						<p style="padding: 0.75em; background: #eee; margin: 0.25em">Two</p>
+						<p style="padding: 1.00em; background: #eee; margin: 0.25em">Three</p>
+					</div>
+				</section>
+
+				<section id="vstack">
+					<h2>VStack</h2>
+					<p>Stacks multiple elements vertically.</p>
+					<pre><code class="html" data-trim data-line-numbers>
+					  <div class="r-vstack">
+					    &lt;img width="450" height="300" src="..."&gt;
+					    &lt;img width="300" height="450" src="..."&gt;
+					    &lt;img width="400" height="400" src="..."&gt;
+					  </div>
+					</code></pre>
+				</section>
+
+				<section data-auto-animate>
+					<h2>VStack Example</h2>
+					<div class="r-vstack">
+						<p style="padding: 0.50em; background: #eee; margin: 0.25em">One</p>
+						<p style="padding: 0.75em; background: #eee; margin: 0.25em">Two</p>
+						<p style="padding: 1.00em; background: #eee; margin: 0.25em">Three</p>
+					</div>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script src="../plugin/highlight/highlight.js"></script>
+		<script>
+			Reveal.initialize({
+				center: true,
+				hash: true,
+				plugins: [ RevealHighlight ]
+			});
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/markdown.html b/inst/reveal.js-4.6.1/examples/markdown.html
new file mode 100644
index 0000000..4d69f05
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/markdown.html
@@ -0,0 +1,161 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Markdown Example</title>
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/white.css" id="theme">
+
+        <link rel="stylesheet" href="../plugin/highlight/monokai.css">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+                <!-- Use external markdown resource, separate slides by three newlines; vertical slides by two newlines -->
+                <section data-markdown="markdown.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n"></section>
+
+                <!-- Slides are separated by three dashes (the default) -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ## Demo 1
+                        Slide 1
+                        ---
+                        ## Demo 1
+                        Slide 2
+                        ---
+                        ## Demo 1
+                        Slide 3
+                    </script>
+                </section>
+
+                <!-- Slides are separated by regexp matching newline + three dashes + newline, vertical slides identical but two dashes -->
+                <section data-markdown data-separator="^\n---\n$" data-separator-vertical="^\n--\n$">
+                    <script type="text/template">
+                        ## Demo 2
+                        Slide 1.1
+
+                        --
+
+                        ## Demo 2
+                        Slide 1.2
+
+                        ---
+
+                        ## Demo 2
+                        Slide 2
+                    </script>
+                </section>
+
+                <!-- No "extra" slides, since the separator can't be matched ("---" will become horizontal rulers) -->
+                <section data-markdown data-separator="$x">
+                    <script type="text/template">
+                        A
+
+                        ---
+
+                        B
+
+                        ---
+
+                        C
+                    </script>
+                </section>
+
+                <!-- Slide attributes -->
+                <section data-markdown>
+                    <script type="text/template">
+                        <!-- .slide: data-background="#000000" -->
+                        ## Slide attributes
+                    </script>
+                </section>
+
+                <!-- Element attributes -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ## Element attributes
+                        - Item 1 <!-- .element: class="fragment" data-fragment-index="2" -->
+                        - Item 2 <!-- .element: class="fragment" data-fragment-index="1" -->
+                    </script>
+                </section>
+
+                <!-- Code -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ```php [1|3-5]
+                        public function foo()
+                        {
+                            $foo = array(
+                                'bar' => 'bar'
+                            )
+                        }
+                        ```
+                    </script>
+                </section>
+
+                <!-- add optional line count offset, in this case 287 -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ## echo.c
+
+                        ```c [287: 2|4,6]
+                        /* All of the options in this arg are valid, so handle them. */
+                        p = arg + 1;
+                        do {
+                            if (*p == 'n')
+                                nflag = 0;
+                            if (*p == 'e')
+                                eflag = '\\';
+                        } while (*++p); 
+                        ```
+                        [source](https://git.busybox.net/busybox/tree/coreutils/echo.c?h=1_36_stable#n287)
+                    </script>
+                </section>
+
+                <!-- Images -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ![Sample image](https://s3.amazonaws.com/static.slid.es/logo/v2/slides-symbol-512x512.png)
+                    </script>
+                </section>
+
+                <!-- Math -->
+                <section data-markdown>
+					## The Lorenz Equations
+					`\[\begin{aligned}
+					\dot{x} &amp; = \sigma(y-x) \\
+					\dot{y} &amp; = \rho x - y - xz \\
+					\dot{z} &amp; = -\beta z + xy
+					\end{aligned} \]`
+                </section>
+
+            </div>
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+        <script src="../plugin/markdown/markdown.js"></script>
+        <script src="../plugin/highlight/highlight.js"></script>
+        <script src="../plugin/notes/notes.js"></script>
+        <script src="../plugin/math/math.js"></script>
+
+		<script>
+
+			Reveal.initialize({
+				controls: true,
+				progress: true,
+				history: true,
+				center: true,
+
+				plugins: [ RevealMarkdown, RevealHighlight, RevealNotes, RevealMath.KaTeX ]
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/markdown.md b/inst/reveal.js-4.6.1/examples/markdown.md
new file mode 100644
index 0000000..1315172
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/markdown.md
@@ -0,0 +1,41 @@
+# Markdown Demo
+
+
+
+## External 1.1
+
+Content 1.1
+
+Note: This will only appear in the speaker notes window.
+
+
+## External 1.2
+
+Content 1.2
+
+
+
+## External 2
+
+Content 2.1
+
+
+
+## External 3.1
+
+Content 3.1
+
+
+## External 3.2
+
+Content 3.2
+
+
+## External 3.3 (Image)
+
+![External Image](https://s3.amazonaws.com/static.slid.es/logo/v2/slides-symbol-512x512.png)
+
+
+## External 3.4 (Math)
+
+`\[ J(\theta_0,\theta_1) = \sum_{i=0} \]`
diff --git a/inst/reveal.js-4.6.1/examples/math.html b/inst/reveal.js-4.6.1/examples/math.html
new file mode 100644
index 0000000..bd2e75a
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/math.html
@@ -0,0 +1,206 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Math Plugin</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/night.css" id="theme">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>reveal.js Math Plugin</h2>
+					<p>Render math with KaTeX, MathJax 2 or MathJax 3</p>
+				</section>
+
+				<section>
+					<h3>The Lorenz Equations</h3>
+
+					\[\begin{aligned}
+					\dot{x} &amp; = \sigma(y-x) \\
+					\dot{y} &amp; = \rho x - y - xz \\
+					\dot{z} &amp; = -\beta z + xy
+					\end{aligned} \]
+				</section>
+
+				<section>
+					<h3>The Cauchy-Schwarz Inequality</h3>
+
+					<script type="math/tex; mode=display">
+						\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
+					</script>
+				</section>
+
+				<section>
+					<h3>A Cross Product Formula</h3>
+
+					\[\mathbf{V}_1 \times \mathbf{V}_2 =  \begin{vmatrix}
+					\mathbf{i} &amp; \mathbf{j} &amp; \mathbf{k} \\
+					\frac{\partial X}{\partial u} &amp;  \frac{\partial Y}{\partial u} &amp; 0 \\
+					\frac{\partial X}{\partial v} &amp;  \frac{\partial Y}{\partial v} &amp; 0
+					\end{vmatrix}  \]
+				</section>
+
+				<section>
+					<h3>The probability of getting \(k\) heads when flipping \(n\) coins is</h3>
+
+					\[P(E)   = {n \choose k} p^k (1-p)^{ n-k} \]
+				</section>
+
+				<section>
+					<h3>An Identity of Ramanujan</h3>
+
+					\[ \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
+					1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
+					{1+\frac{e^{-8\pi}} {1+\ldots} } } } \]
+				</section>
+
+				<section>
+					<h3>A Rogers-Ramanujan Identity</h3>
+
+					\[  1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
+					\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}\]
+				</section>
+
+				<section>
+					<h3>Maxwell&#8217;s Equations</h3>
+
+					\[  \begin{aligned}
+					\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} &amp; = \frac{4\pi}{c}\vec{\mathbf{j}} \\   \nabla \cdot \vec{\mathbf{E}} &amp; = 4 \pi \rho \\
+					\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} &amp; = \vec{\mathbf{0}} \\
+					\nabla \cdot \vec{\mathbf{B}} &amp; = 0 \end{aligned}
+					\]
+				</section>
+
+				<section>
+					<h3>TeX Macros</h3>
+
+					Here is a common vector space:
+					\[L^2(\R) = \set{u : \R \to \R}{\int_\R |u|^2 &lt; +\infty}\]
+					used in functional analysis.
+				</section>
+
+				<section>
+					<section>
+						<h3>The Lorenz Equations</h3>
+
+						<div class="fragment">
+							\[\begin{aligned}
+							\dot{x} &amp; = \sigma(y-x) \\
+							\dot{y} &amp; = \rho x - y - xz \\
+							\dot{z} &amp; = -\beta z + xy
+							\end{aligned} \]
+						</div>
+					</section>
+
+					<section>
+						<h3>The Cauchy-Schwarz Inequality</h3>
+
+						<div class="fragment">
+							\[ \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right) \]
+						</div>
+					</section>
+
+					<section>
+						<h3>A Cross Product Formula</h3>
+
+						<div class="fragment">
+							\[\mathbf{V}_1 \times \mathbf{V}_2 =  \begin{vmatrix}
+							\mathbf{i} &amp; \mathbf{j} &amp; \mathbf{k} \\
+							\frac{\partial X}{\partial u} &amp;  \frac{\partial Y}{\partial u} &amp; 0 \\
+							\frac{\partial X}{\partial v} &amp;  \frac{\partial Y}{\partial v} &amp; 0
+							\end{vmatrix}  \]
+						</div>
+					</section>
+
+					<section>
+						<h3>The probability of getting \(k\) heads when flipping \(n\) coins is</h3>
+
+						<div class="fragment">
+							\[P(E)   = {n \choose k} p^k (1-p)^{ n-k} \]
+						</div>
+					</section>
+
+					<section>
+						<h3>An Identity of Ramanujan</h3>
+
+						<div class="fragment">
+							\[ \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
+							1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
+							{1+\frac{e^{-8\pi}} {1+\ldots} } } } \]
+						</div>
+					</section>
+
+					<section>
+						<h3>A Rogers-Ramanujan Identity</h3>
+
+						<div class="fragment">
+							\[  1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
+							\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}\]
+						</div>
+					</section>
+
+					<section>
+						<h3>Maxwell&#8217;s Equations</h3>
+
+						<div class="fragment">
+							\[  \begin{aligned}
+							\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} &amp; = \frac{4\pi}{c}\vec{\mathbf{j}} \\   \nabla \cdot \vec{\mathbf{E}} &amp; = 4 \pi \rho \\
+							\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} &amp; = \vec{\mathbf{0}} \\
+							\nabla \cdot \vec{\mathbf{B}} &amp; = 0 \end{aligned}
+							\]
+						</div>
+					</section>
+
+					<section>
+						<h3>TeX Macros</h3>
+
+						Here is a common vector space:
+						\[L^2(\R) = \set{u : \R \to \R}{\int_\R |u|^2 &lt; +\infty}\]
+						used in functional analysis.
+					</section>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script src="../plugin/math/math.js"></script>
+		<script>
+			Reveal.initialize({
+				history: true,
+				transition: 'linear',
+
+				mathjax2: {
+					config: 'TeX-AMS_HTML-full',
+					TeX: {
+						Macros: {
+							R: '\\mathbb{R}',
+							set: [ '\\left\\{#1 \\; ; \\; #2\\right\\}', 2 ]
+						}
+					}
+				},
+
+				// There are three typesetters available
+				// RevealMath.MathJax2 (default)
+				// RevealMath.MathJax3
+				// RevealMath.KaTeX
+				//
+				// More info at https://revealjs.com/math/
+				plugins: [ RevealMath.MathJax2 ]
+			});
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/media.html b/inst/reveal.js-4.6.1/examples/media.html
new file mode 100644
index 0000000..388208f
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/media.html
@@ -0,0 +1,75 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Video, Audio and Iframes</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/white.css" id="theme">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>Examples of embedded Video, Audio and Iframes</h2>
+				</section>
+
+				<section>
+					<h2>Iframe</h2>
+					<iframe data-autoplay width="700" height="540" src="https://slides.com/news/auto-animate/embed" frameborder="0"></iframe>
+				</section>
+
+				<section data-background-iframe="https://www.youtube.com/embed/h1_nyI3z8gI" data-background-interactive>
+					<h2 style="color: #fff;">Iframe Background</h2>
+				</section>
+
+				<section>
+					<h2>Video</h2>
+					<video src="http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4" data-autoplay></video>
+				</section>
+
+				<section data-background-video="http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4">
+					<h2>Background Video</h2>
+				</section>
+
+				<section>
+					<h2>Auto-playing audio</h2>
+					<audio src="assets/beeping.wav" data-autoplay></audio>
+				</section>
+
+				<section>
+					<h2>Audio inside slide fragments</h2>
+					<div class="fragment">
+						Beep 1
+						<audio src="assets/beeping.wav" data-autoplay></audio>
+					</div>
+					<div class="fragment">
+						Beep 2
+						<audio src="assets/beeping.wav" data-autoplay></audio>
+					</div>
+				</section>
+
+				<section>
+					<h2>Audio with controls</h2>
+					<audio src="assets/beeping.wav" controls></audio>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script>
+			Reveal.initialize({hash: true});
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/multiple-presentations.html b/inst/reveal.js-4.6.1/examples/multiple-presentations.html
new file mode 100644
index 0000000..e5347d4
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/multiple-presentations.html
@@ -0,0 +1,102 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Multiple Presentations</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/white.css" id="theme">
+		<link rel="stylesheet" href="../plugin/highlight/monokai.css">
+	</head>
+
+	<body style="background: #ddd;">
+
+		<div style="display: flex; flex-direction: row;">
+			<div class="reveal deck1" style="width: 100%; height: 50vh; margin: 10px;">
+				<div class="slides">
+					<section>Deck 1, Slide 1</section>
+					<section>Deck 1, Slide 2</section>
+					<section>
+						<pre data-id="code-animation"><code class="hljs" data-trim data-line-numbers>
+							import React, { useState } from 'react';
+							function Example() {
+							  const [count, setCount] = useState(0);
+							}
+						</code></pre>
+					</section>
+				</div>
+			</div>
+
+			<div class="reveal deck2" style="width: 100%; height: 50vh; margin: 10px;">
+				<div class="slides">
+					<section>Deck 2, Slide 1</section>
+					<section>Deck 2, Slide 2</section>
+					<section data-markdown>
+						<script type="text/template">
+							## Markdown plugin
+
+							- 1
+							- 2
+							- 3
+						</script>
+					</section>
+					<section>
+						<h3>The Lorenz Equations</h3>
+
+						\[\begin{aligned}
+						\dot{x} &amp; = \sigma(y-x) \\
+						\dot{y} &amp; = \rho x - y - xz \\
+						\dot{z} &amp; = -\beta z + xy
+						\end{aligned} \]
+					</section>
+				</div>
+			</div>
+		</div>
+
+		<style>
+			.reveal {
+				border: 4px solid #ccc;
+			}
+			.reveal.focused {
+				border-color: #94b5ff;
+			}
+		</style>
+
+		<script src="../dist/reveal.js"></script>
+		<script src="../plugin/highlight/highlight.js"></script>
+		<script src="../plugin/markdown/markdown.js"></script>
+		<script src="../plugin/math/math.js"></script>
+		<script>
+
+			let deck1 = new Reveal( document.querySelector( '.deck1' ), {
+				embedded: true,
+				progress: false,
+				keyboardCondition: 'focused',
+				plugins: [ RevealHighlight ]
+			} );
+			deck1.on( 'slidechanged', () => {
+				console.log( 'Deck 1 slide changed' );
+			} );
+			deck1.initialize();
+
+			let deck2 = new Reveal( document.querySelector( '.deck2' ), {
+				embedded: true,
+				progress: false,
+				keyboardCondition: 'focused',
+				plugins: [ RevealMarkdown, RevealMath ]
+			} );
+			deck2.initialize().then( () => {
+				deck2.slide(1);
+			} );
+			deck2.on( 'slidechanged', () => {
+				console.log( 'Deck 2 slide changed' );
+			} );
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-4.6.1/examples/transitions.html b/inst/reveal.js-4.6.1/examples/transitions.html
new file mode 100644
index 0000000..adbfd15
--- /dev/null
+++ b/inst/reveal.js-4.6.1/examples/transitions.html
@@ -0,0 +1,97 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Transitions</title>
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../dist/theme/white.css" id="theme">
+		<style type="text/css" media="screen">
+			.slides section.has-dark-background,
+			.slides section.has-dark-background h3 {
+				color: #fff;
+			}
+			.slides section.has-light-background,
+			.slides section.has-light-background h3 {
+				color: #222;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+				<section data-transition="zoom">
+					<h3>data-transition: zoom</h3>
+				</section>
+
+				<section data-transition="zoom-in fade-out">
+					<h3>data-transition: zoom-in fade-out</h3>
+				</section>
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+				<section data-transition="convex">
+					<h3>data-transition: convex</h3>
+				</section>
+
+				<section data-transition="convex-in concave-out">
+					<h3>data-transition: convex-in concave-out</h3>
+				</section>
+
+				<section>
+					<section data-transition="zoom">
+						<h3>Default</h3>
+					</section>
+					<section data-transition="concave">
+						<h3>data-transition: concave</h3>
+					</section>
+					<section data-transition="convex-in fade-out">
+						<h3>data-transition: convex-in fade-out</h3>
+					</section>
+					<section>
+						<h3>Default</h3>
+					</section>
+				</section>
+
+				<section data-transition="none">
+					<h3>data-transition: none</h3>
+				</section>
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script>
+			Reveal.initialize({
+				center: true,
+				history: true,
+
+				// transition: 'slide',
+				// transitionSpeed: 'slow',
+				// backgroundTransition: 'slide'
+			});
+		</script>
+
+	</body>
+</html>