Hello everyone,

May be this will be interesting for you - Checkvist online outliner got much better support for Markdown, including Github extensions.

It also allows exporting of the outline into a single Markdown document, and you can specify how many outline levels should be exported as headers.

Please take a look at our blog post for more information: http://checkvist.tumblr.com/post/110530569153/markdown-code-highlighting-outline-and-export

Thanks,
KIR