WAF update

Author: rnautiyal

articles/application-gateway/ipv6-application-gateway-portal.md

@@ -47,7 +47,7 @@ The IPv6 Application Gateway preview is available to all public cloud regions wh
 * IPv6-only Application Gateway is currently not supported. Application Gateway must be dual stack (IPv6 and IPv4)
 * Application Gateway Ingress Controller (AGIC) doesn't support IPv6 configuration
 * Existing IPv4 application gateways can't be upgraded to dual stack application gateways
-* WAF custom rules with IPv6 match condition are not currently supported
+* WAF custom rules with an IPv6 match condition are not currently supported
 
 
 ## Prerequisites

articles/application-gateway/ipv6-application-gateway-powershell.md

@@ -49,7 +49,7 @@ The IPv6 Application Gateway is available to all public cloud regions where Appl
 * IPv6-only Application Gateway is currently not supported. Application Gateway must be dual stack (IPv6 and IPv4)
 * Application Gateway Ingress Controller (AGIC) doesn't support IPv6 configuration
 * Existing IPv4 Application Gateways can't be upgraded to dual stack Application Gateways
-* WAF custom rules with IPv6 match condition are not currently supported
+* WAF custom rules with an IPv6 match condition are not currently supported