Added rename-git-branch

git/rename-git-branch.md

@@ -0,0 +1,24 @@
+HTML comments inside of JSX won't work, you need to use JavaScript block comments and wrap them in curly brases:
+
+1. Rename a local branch
+
+   if you are on the branch you want to rename:
+    ```Git
+    git branch -m new-name
+    ```
+   if you are on a different branch:
+    ```Git
+    git branch -m old-name new-name
+    ```
+
+2. Delete the old-name remote branch and push the new-name local branch
+    ```Git
+    git push origin :old-name new-name
+    ```
+
+3. Reset the upstream branch with the new-name local branch
+    ```Git
+    git push origin -u -m new-name
+    ```
+
+source: [Rename a local and remote branch in git](https://multiplestates.wordpress.com/2015/02/05/rename-a-local-and-remote-branch-in-git/)