change public peering to Microsoft peering

Author: duongau

articles/azure-cache-for-redis/cache-how-to-premium-vnet.md

@@ -263,7 +263,7 @@ Connecting to an Azure Cache for Redis instance from an on-premises application
 >The routes defined in a UDR _must_ be specific enough to take precedence over any routes advertised by the ExpressRoute configuration. The following example uses the broad 0.0.0.0/0 address range and, as such, can potentially be accidentally overridden by route advertisements that use more specific address ranges.
 
 >[!WARNING]
->Azure Cache for Redis isn't supported with ExpressRoute configurations that _incorrectly cross-advertise routes from the public peering path to the private peering path_. ExpressRoute configurations that have public peering configured receive route advertisements from Microsoft for a large set of Microsoft Azure IP address ranges. If these address ranges are incorrectly cross-advertised on the private peering path, the result is that all outbound network packets from the Azure Cache for Redis instance's subnet are incorrectly force-tunneled to a customer's on-premises network infrastructure. This network flow breaks Azure Cache for Redis. The solution to this problem is to stop cross-advertising routes from the public peering path to the private peering path.
+>Azure Cache for Redis isn't supported with ExpressRoute configurations that _incorrectly cross-advertise routes from the Microsoft peering path to the private peering path_. ExpressRoute configurations that have Microsoft peering configured receive route advertisements from Microsoft for a large set of Microsoft Azure IP address ranges. If these address ranges are incorrectly cross-advertised on the private peering path, the result is that all outbound network packets from the Azure Cache for Redis instance's subnet are incorrectly force-tunneled to a customer's on-premises network infrastructure. This network flow breaks Azure Cache for Redis. The solution to this problem is to stop cross-advertising routes from the Microsoft peering path to the private peering path.
 
 Background information on UDRs is available in [Virtual network traffic routing](../virtual-network/virtual-networks-udr-overview.md).