Snippet format update

To match the starter (for the migration)

snippets/isEmpty.md

@@ -1,4 +1,7 @@
-### isEmpty
+---
+title: isEmpty
+tags: type,array,object,string,beginner
+---
 
 Returns true if the a value is an empty object, collection, has no enumerable properties or is any type that is not considered a collection.
 
@@ -17,4 +20,4 @@ isEmpty({ a: 1, b: 2 }); // false
 isEmpty('text'); // false
 isEmpty(123); // true - type is not considered a collection
 isEmpty(true); // true - type is not considered a collection
-```
+```