This covers some of the considerations when working with multiple environments and repositories.

• http://chris.beams.io/posts/git-commit/
• https://robots.thoughtbot.com/5-useful-tips-for-a-better-commit-message
• https://github.com/blog/1943-how-to-write-the-perfect-pull-request
• https://guides.github.com/introduction/flow/
• http://brettterpstra.com/2014/08/03/shell-tricks-changelogs-with-git/