commit message 에 대하여

출저 : 

http://www.haruair.com/blog/2683

https://item4.github.io/2016-11-01/How-to-Write-a-Git-Commit-Message/

http://dol9.tistory.com/246

https://tech.ssut.me/2015/06/24/write-a-good-git-commit-message/