chore(DateRangePicker): Fix broken code block

Author: ntacheva

components/daterangepicker/events.md

@@ -105,7 +105,7 @@ The `OnChange` event represents a user action - confirmation of the current valu
 
         // the fields are of type object because you can use nullable or non-nullable DateTime
         // so you may need to cast them if you want to use the actual DateTime objects
-
+````
 
 ## OnOpen