Format snippets

snippets/forOwn.md

@@ -10,7 +10,8 @@ Iterates over all own properties of an object, running a callback for each one.
 - The callback receives three arguments - the value, the key and the object.
 
 ```js
-const forOwn = (obj, fn) => Object.keys(obj).forEach(key => fn(obj[key], key, obj));
+const forOwn = (obj, fn) =>
+  Object.keys(obj).forEach(key => fn(obj[key], key, obj));
 ```
 
 ```js