I was following through the steps on the [Initialize Git and Push to GitHub] and did
>> git remote add origin (ssh)
fatal: remote origin already exists.
>> git push -u origin master
(then got this message)
To (ssh link) ! [rejected] master -> master (fetch first) error: failed to push some refs to 'ssh link' hint: Updates were rejected because the remote contains work that you do hint: not have locally. This is usually caused by another repository pushing hint: to the same ref. You may want to first integrate the remote changes hint: (e.g., 'git pull ...') before pushing again. hint: See the 'Note about fast-forwards' in 'git push --help' for details.
what did I miss?