Snippet format update

To match the starter (for the migration)

snippets/zip.md

@@ -1,4 +1,7 @@
-### zip
+---
+title: zip
+tags: array,intermediate
+---
 
 Creates an array of elements, grouped based on the position in the original arrays.
 
@@ -18,4 +21,4 @@ const zip = (...arrays) => {
 ```js
 zip(['a', 'b'], [1, 2], [true, false]); // [['a', 1, true], ['b', 2, false]]
 zip(['a'], [1, 2], [true, false]); // [['a', 1, true], [undefined, 2, false]]
-```
+```