Fix typo

Javascript -> JavaScript

Author: changeworld

articles/communication-services/quickstarts/advanced-messaging/whatsapp/includes/templates/messages-quickstart-template-messages-javascript.md

@@ -22,7 +22,7 @@ ms.author: shamkh
 
 ## Object model
 
-The following classes and interfaces handle some of the major features of the Azure Communication Services Messages SDK for Javascript.
+The following classes and interfaces handle some of the major features of the Azure Communication Services Messages SDK for JavaScript.
 
 | Class Name | Description |
 | --- | --- |