enkiKim/GitStudy — comment on commit 0c133706935f4ac38ad7af11386fadac2be71f89
File:  line 0
By enkiKim:

After upper, below message shows on doing ' git push '
To git@github.com:enkiKim/GitStudy.git
! [rejected] master -> master (non-fast-forward)
error: failed to push some refs to 'git@github.com:enkiKim/GitStudy.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again. See the
'Note about fast-forwards' section of 'git push --help' for details.