Update about-nva-hub.md - Acrolinx fix

Author: American-Dipper

articles/virtual-wan/about-nva-hub.md

@@ -55,7 +55,7 @@ Customers can deploy an Azure Firewall along side their connectivity-based NVAs.
 
 ### Security provided by NVA firewalls
 
-Customers can also deploy NVAs into a Virtual WAN hub that perform both SD-WAN connectivity and Next-Generation Firewall capabilities. Customers can connect on-premises devices to the NVA in the hub and also use the same appliance to inspect all North-South, East-West, and Internet-bound traffic. Routing to enable these scenarios can be configured via [Routing Intent and Routing Policies](./how-to-routing-policies.md).
+Customers can also deploy NVAs into a Virtual WAN hub that performs both SD-WAN connectivity and Next-Generation Firewall capabilities. Customers can connect on-premises devices to the NVA in the hub and also use the same appliance to inspect all North-South, East-West, and Internet-bound traffic. Routing to enable these scenarios can be configured via [Routing Intent and Routing Policies](./how-to-routing-policies.md).
 
 Partners that support these traffic flows are listed as **dual-role SD-WAN connectivity and security (Next-Generation Firewall) Network Virtual Appliances** in the [Partners section](#partners).