Limit WAF references to its own section

Author: vhorne

articles/application-gateway/overview.md

@@ -6,7 +6,7 @@ author: vhorne
 ms.service: application-gateway
 ms.topic: overview
 ms.custom: mvc
-ms.date: 11/23/2019
+ms.date: 03/03/2020
 ms.author: victorh
 #Customer intent: As an IT administrator, I want to learn about Azure Application Gateways and what I can use them for.
 ---
@@ -36,11 +36,11 @@ Application gateway supports SSL/TLS termination at the gateway, after which tra
 
 ## Autoscaling
 
-Application Gateway or WAF deployments under Standard_v2 or WAF_v2 SKU support autoscaling and can scale up or down based on changing traffic load patterns. Autoscaling also removes the requirement to choose a deployment size or instance count during provisioning. For more information about the Application Gateway Standard_v2 and WAF_v2  features, see [Autoscaling v2 SKU](application-gateway-autoscaling-zone-redundant.md).
+Application Gateway Standard_v2 supports autoscaling and can scale up or down based on changing traffic load patterns. Autoscaling also removes the requirement to choose a deployment size or instance count during provisioning. For more information about the Application Gateway Standard_v2 features, see [Autoscaling v2 SKU](application-gateway-autoscaling-zone-redundant.md).
 
 ## Zone redundancy
 
-An Application Gateway or WAF deployments under  Standard_v2 or WAF_v2 SKU can span multiple Availability Zones, offering better fault resiliency and removing the need to provision separate Application Gateways in each zone.
+An Application Gateway Standard_v2 can span multiple Availability Zones, offering better fault resiliency and removing the need to provision separate Application Gateways in each zone.
 
 ## Static VIP
 
@@ -72,7 +72,7 @@ For more information, see [URL-based routing with Application Gateway](https://d
 
 ## Multiple-site hosting
 
-Multiple-site hosting enables you to configure more than one web site on the same application gateway instance. This feature allows you to configure a more efficient topology for your deployments by adding up to 100 web sites to one Application Gateway, or 40 for WAF (for optimal performance). Each web site can be directed to its own pool. For example, application gateway can serve traffic for `contoso.com` and `fabrikam.com` from two server pools called ContosoServerPool and FabrikamServerPool.
+Multiple-site hosting enables you to configure more than one web site on the same application gateway instance. This feature allows you to configure a more efficient topology for your deployments by adding up to 100 web sites to one Application Gateway (for optimal performance). Each web site can be directed to its own pool. For example, application gateway can serve traffic for `contoso.com` and `fabrikam.com` from two server pools called ContosoServerPool and FabrikamServerPool.
 
 Requests for `http://contoso.com` are routed to ContosoServerPool, and `http://fabrikam.com` are routed to FabrikamServerPool.
 
@@ -134,7 +134,7 @@ For more information, see [Rewrite HTTP headers](rewrite-http-headers.md).
 
 Application Gateway Standard_v2 and WAF_v2 SKU can be configured for autoscaling or fixed size deployments. These SKUs don't offer different instance sizes. For more information on v2 performance and pricing, see [Autoscaling v2 SKU](https://docs.microsoft.com/azure/application-gateway/application-gateway-autoscaling-zone-redundant#pricing).
 
-The Application Gateway Standard and WAF SKU is currently offered in three sizes: **Small**, **Medium**, and **Large**. Small instance sizes are intended for development and testing scenarios.
+The Application Gateway Standard is currently offered in three sizes: **Small**, **Medium**, and **Large**. Small instance sizes are intended for development and testing scenarios.
 
 For a complete list of application gateway limits, see [Application Gateway service limits](../azure-resource-manager/management/azure-subscription-service-limits.md?toc=%2fazure%2fapplication-gateway%2ftoc.json#application-gateway-limits).