Add Code Snippets to Spec Files

Author: DX-Bandwidth

site/specs/voice.yml

@@ -6917,6 +6917,7 @@ components:
         The approximate UTC date and time when the event was generated by the
         Bandwidth server, in ISO 8601 format. This may not be exactly the time
         of event execution.
+      example: '2022-06-17T22:19:40.375Z'
     accountId:
       type: string
       description: The user account associated with the call.