Add rename branch snippets

snippets/rename-branch.md

@@ -0,0 +1,18 @@
+---
+title: Rename a branch
+tags: branch,beginner
+---
+
+Renames a local branch.
+
+- Use `git branch -m <old-name> <new-name>` to rename `<old-name>` to `<new-name>`.
+
+```sh
+git branch -m <old-name> <new-name>
+```
+
+```sh
+git checkout master
+git branch -m patch-1 patch-2
+# Renames `patch-1` to `patch-2`
+```

snippets/rename-remote-branch.md

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+---
+title: Rename remote branch
+tags: branch,intermediate
+---
+
+Renames a branch both locally and on the remote.
+
+- Use `git branch -m <old-name> <new-name>` to rename the local `<old-name>` branch to `<new-name>`.
+- Use `git push origin --delete <old-name>` to delete the old remote branch.
+- Use `git checkout <new-name>` to switch to the renamed branch.
+- Use `git push origin -u <new-name>` to set `<new-name>` as the remote branch for the renamed branch.
+
+```sh
+git branch -m <old-name> <new-name>
+git push origin --delete <old-name>
+git checkout <new-name>
+git push origin -u <new-name>
+```
+
+```sh
+git checkout master
+git branch -m patch-1 patch-2    # Renamed the local branch to `patch-2`
+git push origin --delete patch-1
+git checkout patch-2
+git push origin -u patch-2 # Renames the remote branch to `patch-2`
+```