이미 Push한 Commit 메시지 수정 https://data-study-clip.tistory.com/237
특정커밋삭제 https://velog.io/@ddowoo/Git-%ED%8A%B9%EC%A0%95-%EC%BB%A4%EB%B0%8B-%EC%82%AD%EC%A0%9C%ED%95%98%EA%B8%B0-rebase
되돌리기 https://americanopeople.tistory.com/206
