change valign's default to middle in collapse_rows. update vignette as requested by CRAN
diff --git a/docs/awesome_table_in_html.html b/docs/awesome_table_in_html.html
index ea829e1..a2b79c7 100644
--- a/docs/awesome_table_in_html.html
+++ b/docs/awesome_table_in_html.html
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 <p>Since the structure of <code>kable</code> is relatively simple, it shouldn’t be too difficult to convert HTML or LaTeX tables generated by other packages to a <code>kable</code> object and then use <code>kableExtra</code> to modify the outputs. If you are a package author, feel free to reach out to me and we can collaborate.</p>
 <div id="tables" class="section level2">
 <h2><code>tables</code></h2>
-<p>The latest version of <a href="https://cran.r-project.org/web/packages/tables/index.html"><code>tables</code></a> comes with a <code>toKable()</code> function, which is compatiable with functions in <code>kableExtra</code> (&gt;=0.9.0).</p>
+<p>The latest version of <a href="https://CRAN.R-project.org/package=tables"><code>tables</code></a> comes with a <code>toKable()</code> function, which is compatiable with functions in <code>kableExtra</code> (&gt;=0.9.0).</p>
 </div>
 </div>