Snippet format update

To match the starter (for the migration)

snippets/dropWhile.md

@@ -1,4 +1,7 @@
-### dropWhile
+---
+title: dropWhile
+tags: array,function,intermediate
+---
 
 Removes elements in an array until the passed function returns `true`. Returns the remaining elements in the array.
 
@@ -14,4 +17,4 @@ const dropWhile = (arr, func) => {
 
 ```js
 dropWhile([1, 2, 3, 4], n => n >= 3); // [3,4]
-```
+```