Snippet format update

To match the starter (for the migration)

snippets_archive/quickSort.md

@@ -1,4 +1,7 @@
-### quickSort
+---
+title: quickSort
+tags: algorithm,recursion,beginner
+---
 
 QuickSort an Array (ascending sort by default).
 
@@ -20,4 +23,4 @@ const quickSort = ([n, ...nums], desc) =>
 ```js
 quickSort([4, 1, 3, 2]); // [1,2,3,4]
 quickSort([4, 1, 3, 2], true); // [4,3,2,1]
-```
+```