https://ihower.tw/blog/archives/3843
http://nvie.com/posts/a-successful-git-branching-model/
https://github.com/xirong/my-git/blob/master/git-workflow-tutorial.md
https://www.sourcetreeapp.com/
https://ourai.ws/posts/working-with-git-in-team/#merging
https://ourai.ws/posts/working-with-git-in-team/#developing