Rename both local and remote branch

gistfile1.txt

Source: https://multiplestates.wordpress.com/2015/02/05/rename-a-local-and-remote-branch-in-git/

1. Rename your local branch:
If you are on the branch you want to rename:
git branch -m new-name

If you are on a different branch:
git branch -m old-name new-name

2. Delete the old-name remote branch and push the new-name local branch.
git push origin :old-name new-name

3. Reset the upstream branch for the new-name local branch.
Switch to the branch and then:
git push origin -u new-name