last time , when i git push my own github repo, i got this error
fatal: remote error: You can't push to git://github.com/user/repo.git Use https://github.com/user/repo.git
after some googling and reading github help, i found this:
that is URL like git://github.com/user/repo.git is read-only, SSH URL like email@example.com:user/repo.git and HTTPS URL like https://github.com/user/repo.git are writeable.
so the solution is pretty simple:
git remote rm origin
git remote add origin firstname.lastname@example.org:user/repo.git
git push origin master
Hope it helps !