Usually in git there is only origin and local, in git hub as we have origin and upstream, we can sync by follow below commands.
$ git remote -v
$ git remote add upstream git@remoteURL.github.com
$ git remote -v
$ git fetch upstream
Usually in git there is only origin and local, in git hub as we have origin and upstream, we can sync by follow below commands.
$ git remote -v
$ git remote add upstream git@remoteURL.github.com
$ git remote -v
$ git fetch upstream