Provide user documentation for gitg
Submitted by Adam Dingle
Link to original bug (#647085)
Description
As far as I can tell gitg has no documentation anywhere. It's not immediately obvious how to use all of its features and preferences, and some features are also a little hard to discover (e.g. drag and drop). So there should be documentation explaining how it all works from a user standpoint.
Version: 0.2.x