update wording

Author: Ericgre

articles/app-service/networking/private-endpoint.md

@@ -71,7 +71,7 @@ For pricing details, see [Azure Private Link pricing][pricing].
 
 ## Limitations
 
-When you use Azure Function in Elastic Premium Plan with Private Endpoint, you cannot run or execute the function in Azure Web portal. You must have direct network access in order to run your app or you will receive an HTTP 403 error. 
+When you use Azure Function in Elastic Premium Plan with Private Endpoint, to run or execute the function in Azure Web portal, you must have direct network access or you will receive an HTTP 403 error. In other words your browser must be able to reach the Private Endpoint to execute the function from the Azure Web portal. 
 
 During the preview only the production slot is exposed behind the Private Endpoint, other slots are reachable by Public Endpoint only.