Update forced-tunneling.md

acrolinx terminology edit

Author: v-shmck

articles/firewall/forced-tunneling.md

@@ -18,7 +18,7 @@ have a default route not going directly to the Internet are disabled.
 
 ## Forced tunneling configuration
 
-To support forced tunneling, service management traffic is separated from customer traffic. An additional dedicated subnet named *AzureFirewallManagementSubnet* (minimum subnet size /26) is required with its own associated public IP address. The only route allowed on this subnet is a default route to the Internet, and BGP route propagation must be disabled.
+To support forced tunneling, Service Management traffic is separated from customer traffic. An additional dedicated subnet named *AzureFirewallManagementSubnet* (minimum subnet size /26) is required with its own associated public IP address. The only route allowed on this subnet is a default route to the Internet, and BGP route propagation must be disabled.
 
 If you have a default route advertised via BGP to force traffic to on-premises, you must create the *AzureFirewallSubnet* and *AzureFirewallManagementSubnet* before deploying your firewall and have a UDR with a default route to the Internet, and **Virtual network gateway route propagation** disabled.
 
@@ -32,4 +32,4 @@ Once you configure Azure Firewall to support forced tunneling, you can't undo th
 
 ## Next steps
 
-- [Tutorial: Deploy and configure Azure Firewall in a hybrid network using the Azure portal](tutorial-hybrid-portal.md)
+- [Tutorial: Deploy and configure Azure Firewall in a hybrid network using the Azure portal](tutorial-hybrid-portal.md)