Update api-management-using-with-vnet.md

Author: dcbrown16

articles/api-management/api-management-using-with-vnet.md

@@ -132,6 +132,8 @@ When an API Management service instance is hosted in a VNET, the ports in the fo
 
 + **Metrics and Health Monitoring**: Outbound network connectivity to Azure Monitoring endpoints, which resolve under the following domains:
 
++ **Regional Service Tags**": NSG rules allowing outbound connectivity to Storage, SQL, and EventHubs service tags may use the regional versions of those tags corresponding to the region containing the API Management instance (for example, Storage.WestUS for an API Management instance in the West US region). In multi-region deployments, the NSG in each region should allow traffic to the service tags for that region.
+
     | Azure Environment | Endpoints                                                                                                                                                                                                                                                                                                                                                              |
     |-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
     | Azure Public      | <ul><li>gcs.prod.monitoring.core.windows.net(**new**)</li><li>prod.warmpath.msftcloudes.com(**to be deprecated**)</li><li>shoebox2.metrics.microsoftmetrics.com(**new**)</li><li>shoebox2.metrics.nsatc.net(**to be deprecated**)</li><li>prod3.metrics.microsoftmetrics.com(**new**)</li><li>prod3.metrics.nsatc.net(**to be deprecated**)</li><li>prod3-black.prod3.metrics.microsoftmetrics.com(**new**)</li><li>prod3-black.prod3.metrics.nsatc.net(**to be deprecated**)</li><li>prod3-red.prod3.metrics.microsoftmetrics.com(**new**)</li><li>prod3-red.prod3.metrics.nsatc.net(**to be deprecated**)</li><li>prod.warm.ingestion.msftcloudes.com</li><li>`azure region`.warm.ingestion.msftcloudes.com where `East US 2` is eastus2.warm.ingestion.msftcloudes.com</li></ul> |