Kaleyemijowurolo

STEP1: Rename the local branch
git branch -m old_branch new_branch         

STEP2: Delete the old-remote branch & push othe new renamed local branch
git push origin :old_branch                 # Delete the old branch    
git push --set-upstream origin new_branch   # Push the new branch, set local branch to track the new remote

or
git push origin :old_branch new_branch      # perform the 2 operations at once