Git configuration aims at helping you typing less git commands for better efficiency.
This intention is made possible through aliases. You can find them in every .inc files.
Look at this wonderfull project:
http://pcottle.github.io/learnGitBranching/index.html?demo
If you ever want to contribute to this project, you can join me on http://phabricator.leclercq.site where you'll gain access to my projects issue tracker/repository.