Reformat all code to use shell instead of sh

snippets/sort-branches-by-date.md

@@ -8,11 +8,11 @@ Prints a list of all local branches sorted by date.
 - Use `git branch --sort=-committerdate` to display a list of all local branches and sort them based on the date of their last commit.
 - Use arrow keys to navigate, press <kbd>Q</kbd> to exit.
 
-```sh
+```shell
 git branch --sort=-committerdate
 ```
 
-```sh
+```shell
 git branch --sort=-committerdate
 # master
 # patch-1