Update snippet descriptions

snippets/off.md

@@ -9,7 +9,8 @@ Removes an event listener from an element.
 - Omit the fourth argument `opts` to use `false` or specify it based on the options used when the event listener was added.
 
 ```js
-const off = (el, evt, fn, opts = false) => el.removeEventListener(evt, fn, opts);
+const off = (el, evt, fn, opts = false) =>
+  el.removeEventListener(evt, fn, opts);
 ```
 
 ```js