Update outbound public ip doc

Author: Xuyang Cao

articles/spring-cloud/how-to-outbound-public-ip.md

@@ -11,7 +11,9 @@ ms.custom: devx-track-java
 
 # How to identify outbound public IP addresses in Azure Spring Cloud
 
-This page explains how to view static outbound public IP addresses of Azure Spring Cloud applications.  Public IPs are used to communicate with external resources, such as databases, storage, and key vaults.
+This page explains how to view static outbound public IP addresses of Azure Spring Cloud applications. Public IPs are used to communicate with external resources, such as databases, storage, and key vaults.
+
+[!IMPORTANT] If the Azure Spring Cloud instance is deployed in your own virtual network, you have fully control of the egress traffic. Please refer to the FAQ section below for more information. 
 
 ## How IP addresses work in Azure Spring Cloud