As someone searching for an enterprise grade replacement to our current system of using MS word -> pdf -> CD to publish and maintain 500+ user and install guide

As someone searching for an enterprise grade replacement to our current system of using MS word -> pdf -> CD to publish and maintain 500+ user and install guides... -what flavor of Markdown do you support (captions/TOC/auto-number figures and tables) -can I paste images from the clipboard directly into the editor (like one can with github issues)? -what's the advantages over setting up my own git repo and using something like gitbooks? .... You _really_ should have a demo available for people to try out.