Update how-to-use-private-endpoint.md

Author: craigshoemaker

articles/container-apps/how-to-use-private-endpoint.md

@@ -1,5 +1,5 @@
 ---
-title: Use a private endpoint with an Azure Container Apps environment
+title: Use a private endpoint with an Azure Container Apps environment (preview)
 description: Learn how to use a private endpoint with an Azure Container Apps environment.
 services: container-apps
 author: craigshoemaker
@@ -11,7 +11,7 @@ ms.author: cshoe
 zone_pivot_groups: azure-cli-or-portal
 ---
 
-# Use a private endpoint with an Azure Container Apps environment
+# Use a private endpoint with an Azure Container Apps environment (preview)
 
 In this article, you learn how to use a private endpoint to securely access your Azure Container App without exposing it to the public Internet.