git] error: failed to push some refs to

참고사이트: https://stackoverflow.com/questions/24114676/git-error-failed-to-push-some-refs-to-remote

아래 에러 해결방법

error: failed to push some refs to '---'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.