git config

rebase가 아닌 merge로 하려고할때 참고한 링크들
https://sanghye.tistory.com/43
https://webisfree.com/2018-07-26/git-config-%EC%84%A4%EC%A0%95-%ED%99%95%EC%9D%B8-%EB%B0%8F-%EB%B3%80%EA%B2%BD%ED%95%98%EA%B8%B0