Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
GitHub Flavored Markdown - GitHub uses "GitHub Flavored Markdown," or GFM, across the site--in issues, comments, and...
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
DocBook - DocBook is a schema (available in several languages including RELAX NG, SGML and XML DTDs, and W3C...
HelpScout - Help Scout is a simple, straightforward way to provide excellent support
pandoc - Pandoc is a Haskell library for converting from one markup format to another, and a command-line...