Example to show simple preprocessor to use multiple files for your markdown presentation
Preprocessor is used to parse markdown file and include content of other files.
Before reveal-md 3.0 there was an options value with slides directory.
Since 3.0 there isn't, so I have added my own into reveal-md.json
It is used as a base path for includes.
You can find sample in the slides directory.
npm i npm start
Tested with node 16