Build plain markdown from the RMarkdown episodesSource:
In the spirit of hugodown, This function will build plain markdown files
as a minimal R package in the
site/ folder of your sandpaper lesson
repository tagged with the hash of your file to ensure that only files that
have changed are rebuilt.
the path to your repository (defaults to your current working directory)
TRUE, everything will be built from scratch as if there was no cache. Defaults to
FALSE, which will only build markdown files that haven't been built before.