Reformat all code to use shell instead of sh

snippets/push-changes.md

@@ -7,11 +7,11 @@ Pushes the current branch's changes to the remote.
 
 - Use `git push` to push the latest changes from the local branch to the remote.
 
-```sh
+```shell
 git fetch
 ```
 
-```sh
+```shell
 # Assuming the local `patch-1` branch is ahead of the remote one
 git checkout patch-1
 git push # The remote `patch-1` branch is now up to date with the local branch