standalone mode that doesn't require Internet connection

.github/workflows/build.yml

@@ -42,4 +42,5 @@ jobs:
             **/*.pdf
             **/*.html
             media/
+            reveal.js/
           if-no-files-found: error

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "reveal.js"]
+	path = reveal.js
+	url = https://github.com/hakimel/reveal.js.git

README.md

@@ -5,13 +5,7 @@ Develop locally using VSCode and "Run on Save" by "pucelle" extension to run pan
 
 ## Present
 
-* Make sure to generate a *standalone* HTML, since the default one requires internet to load styles etc. This is done by github actions, or by using:
-
-```
-./run-pandoc.sh --embed-resources --standalone
-```
-
-Note that this will embed all media files including videos, so only the HTML file is needed for presenting.
+* Make sure to copy all files (including media and reveal.js folder) when presenting on another computer
 
 * There is a presenter mode, but it only works when using the "Live Server" (not when just opening the html file in the browser):
 

run-pandoc.sh

@@ -1,3 +1,3 @@
 file="$1"
 shift
-pandoc --citeproc --bibliography *.bib --css custom.css --mathjax --standalone -t revealjs $file.md -o $file.html $@
+pandoc --citeproc --bibliography *.bib --css custom.css --mathjax --standalone -t revealjs -V revealjs-url:reveal.js $file.md -o $file.html $@