Lots of updates

hyperref support as well as footnoes for authors.
diff --git a/.Rproj.user/5271889B/persistent-state b/.Rproj.user/5271889B/persistent-state
index ebe6faf..b75c2cf 100644
--- a/.Rproj.user/5271889B/persistent-state
+++ b/.Rproj.user/5271889B/persistent-state
@@ -1,8 +1,8 @@
 build-last-errors="[]"
 build-last-errors-base-dir="~/GitHub/posterdown/"
-build-last-outputs="[{\"output\":\"==> devtools::document(roclets=c('rd', 'collate', 'namespace'))\\n\\n\",\"type\":0},{\"output\":\"Updating posterdown documentation\\r\\n\",\"type\":2},{\"output\":\"Writing NAMESPACE\\r\\n\",\"type\":1},{\"output\":\"Loading posterdown\\r\\n\",\"type\":2},{\"output\":\"Writing NAMESPACE\\r\\n\",\"type\":1},{\"output\":\"Documentation completed\\n\\n\",\"type\":1},{\"output\":\"==> Rcmd.exe INSTALL --preclean --no-multiarch --with-keep.source posterdown\\n\\n\",\"type\":0},{\"output\":\"* installing to library 'C:/Users/Brent Thorne/Documents/R/win-library/3.5'\\r\\n\",\"type\":1},{\"output\":\"* installing *source* package 'posterdown' ...\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** R\\r\\n\",\"type\":1},{\"output\":\"** inst\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** byte-compile and prepare package for lazy loading\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** help\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"*** installing help indices\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"  converting help for package 'posterdown'\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"    finding HTML links ...\",\"type\":1},{\"output\":\"    posterdown                              html  \\r\\n\",\"type\":1},{\"output\":\"    posterdown_memoir                       html  \\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\" done\\r\\n\",\"type\":1},{\"output\":\"** building package indices\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** testing if installed package can be loaded\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"* DONE (posterdown)\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"In R CMD INSTALL\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1}]"
-compile_pdf_state="{\"errors\":[],\"output\":\"\",\"running\":false,\"tab_visible\":false,\"target_file\":\"\"}"
+build-last-outputs="[{\"output\":\"==> devtools::document(roclets=c('rd', 'collate', 'namespace'))\\n\\n\",\"type\":0},{\"output\":\"Updating posterdown documentation\\r\\n\",\"type\":2},{\"output\":\"Writing NAMESPACE\\r\\n\",\"type\":1},{\"output\":\"Loading posterdown\\r\\n\",\"type\":2},{\"output\":\"Writing NAMESPACE\\r\\n\",\"type\":1},{\"output\":\"Documentation completed\\n\\n\",\"type\":1},{\"output\":\"==> Rcmd.exe INSTALL --preclean --no-multiarch --with-keep.source posterdown\\n\\n\",\"type\":0},{\"output\":\"* installing to library 'C:/Users/Brent Thorne/Documents/R/win-library/3.5'\\r\\n\",\"type\":1},{\"output\":\"* installing *source* package 'posterdown' ...\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** R\\r\\n\",\"type\":1},{\"output\":\"** inst\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** byte-compile and prepare package for lazy loading\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** help\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"*** installing help indices\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"  converting help for package 'posterdown'\\r\\n\",\"type\":1},{\"output\":\"    posterdown                              html  \\r\\n\",\"type\":1},{\"output\":\"    posterdown_memoir                       html  \",\"type\":1},{\"output\":\"    finding HTML links ... done\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"** building package indices\\r\\n\",\"type\":1},{\"output\":\"** testing if installed package can be loaded\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"* DONE (posterdown)\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1},{\"output\":\"In R CMD INSTALL\\r\\n\",\"type\":1},{\"output\":\"\",\"type\":1}]"
+compile_pdf_state="{\"errors\":[{\"column\":1,\"line\":119,\"log_line\":1668,\"log_path\":\"~/GitHub/posterdown/inst/rmarkdown/templates/posterdown_memoir/resources/template.log\",\"message\":\"\\\\marginparsep is zero or negative on input line 119.\",\"path\":\"c:/Users/Brent Thorne/AppData/Roaming/TinyTeX/texmf-dist/tex/latex/pgf/basiclayer/pgfcore.sty\",\"show_error_list\":true,\"type\":1},{\"column\":1,\"line\":119,\"log_line\":1671,\"log_path\":\"~/GitHub/posterdown/inst/rmarkdown/templates/posterdown_memoir/resources/template.log\",\"message\":\"\\\\marginparwidth is zero or negative on input line 119.\",\"path\":\"c:/Users/Brent Thorne/AppData/Roaming/TinyTeX/texmf-dist/tex/latex/pgf/basiclayer/pgfcore.sty\",\"show_error_list\":true,\"type\":1},{\"column\":1,\"line\":123,\"log_line\":1729,\"log_path\":\"~/GitHub/posterdown/inst/rmarkdown/templates/posterdown_memoir/resources/template.log\",\"message\":\"Overfull \\\\hbox (55.84848pt too wide) in paragraph at lines 123--126\",\"path\":\"c:/Users/Brent Thorne/AppData/Roaming/TinyTeX/texmf-dist/tex/latex/pgf/basiclayer/pgfcore.sty\",\"show_error_list\":true,\"type\":2},{\"column\":1,\"line\":151,\"log_line\":1874,\"log_path\":\"~/GitHub/posterdown/inst/rmarkdown/templates/posterdown_memoir/resources/template.log\",\"message\":\"Empty bibliography on input line 151.\",\"path\":\"c:/Users/Brent Thorne/AppData/Roaming/TinyTeX/texmf-dist/tex/latex/pgf/basiclayer/pgfcore.sty\",\"show_error_list\":true,\"type\":1}],\"output\":\"Running pdflatex.exe on template.tex...completed\\n\\nCreated PDF: ~/GitHub/posterdown/inst/rmarkdown/templates/posterdown_memoir/resources/template.pdf\\n\\nIssues: 3 warnings, 1 badbox\\n[Compile PDF Stopped]\\n\",\"running\":false,\"tab_visible\":true,\"target_file\":\"~/GitHub/posterdown/inst/rmarkdown/templates/posterdown_memoir/resources/template.tex\"}"
 files.monitored-path=""
 find-in-files-state="{\"handle\":\"\",\"input\":\"\",\"path\":\"\",\"regex\":true,\"results\":{\"file\":[],\"line\":[],\"lineValue\":[],\"matchOff\":[],\"matchOn\":[]},\"running\":false}"
-imageDirtyState="0"
-saveActionState="0"
+imageDirtyState="1"
+saveActionState="-1"