For various reasons I've been working on a tool for the Book module that will integrate it with GitHub. i.e. it enables you to import/export content from the Book to/from GitHub.
This post demonstrates how it currently works.
Not 100% completed. The aim is for early 2016 and it will be added to the plugins database. The code is available via GitHub.
Early look at a Book module/github integration
This discussion has been locked because a year has elapsed since the last post. Please start a new discussion topic.