Snippet format update

To match the starter (for the migration)

snippets/unzipWith.md

@@ -1,4 +1,7 @@
-### unzipWith
+---
+title: unzipWith
+tags: array,function,advanced
+---
 
 Creates an array of elements, ungrouping the elements in an array produced by [zip](#zip) and applying the provided function.
 
@@ -20,4 +23,4 @@ const unzipWith = (arr, fn) =>
 
 ```js
 unzipWith([[1, 10, 100], [2, 20, 200]], (...args) => args.reduce((acc, v) => acc + v, 0)); // [3, 30, 300]
-```
+```