Editar o nome do ramo git
$ git checkout Branch-Name-You-Want-to-Change
$ git branch -m New-Branch-Name
Sore Skipper
$ git checkout Branch-Name-You-Want-to-Change
$ git branch -m New-Branch-Name#checkout to the branch
git checkout old_branch_name
#in the same branch run the command
git branch -m new_branch_name