A literate programming tool that targets Markdeep - http://casual-effects.com/markdeep/
Supports C, Scheme, Ruby.
$ gem install code-to-markdeep
$ bin/code-to-markdeep src-file doc/index.md
# Open doc/index.md.html in your favorite web browser.
Bug reports and pull requests are welcome on GitHub at https://github.com/kstephens/code_to_markdeep.