update

Author: cherylmc

articles/vpn-gateway/vpn-gateway-about-vpngateways.md

@@ -17,9 +17,9 @@ A VPN gateway is a specific type of virtual network gateway that is used to send
 
 ## <a name="whatis"></a>What is a virtual network gateway?
 
-A virtual network gateway is composed of two or more virtual machines that are deployed to a specific subnet you create. The subnet is called the *gateway subnet*. The VMs that are located in the gateway subnet are created when you create the virtual network gateway. Virtual network gateway VMs are configured to contain routing tables and gateway services specific to the gateway. You can't directly configure the VMs that are part of the virtual network gateway and you should never deploy additional resources to the gateway subnet.
+A virtual network gateway is composed of two or more VMs that are deployed to a specific subnet you create called the *gateway subnet*. Virtual network gateway VMs contain routing tables and run specific gateway services. These VMs are created when you create the virtual network gateway. You can't directly configure the VMs that are part of the virtual network gateway.
 
-A virtual network can have two virtual network gateways; one VPN gateway and one ExpressRoute gateway - as is the case with [coexisting](#coexisting) connection configurations. The gateway type 'vpn' specifies that the type of virtual network gateway created is a **VPN gateway**, rather than an ExpressRoute gateway.
+One setting that you configure for a virtual network gateway is the gateway type. Gateway type specifies how the virtual network gateway will be used and the actions that the gateway takes. The gateway type 'Vpn' specifies that the type of virtual network gateway created is a 'VPN gateway', rather than an ExpressRoute gateway. A virtual network can have two virtual network gateways; one VPN gateway and one ExpressRoute gateway - as is the case with [coexisting](#coexisting) connection configurations. For more information, see [Gateway types](vpn-gateway-about-vpn-gateway-settings.md#gwtype).
 
 VPN gateways can be deployed in Azure Availability Zones. This brings resiliency, scalability, and higher availability to virtual network gateways. Deploying gateways in Azure Availability Zones physically and logically separates gateways within a region, while protecting your on-premises network connectivity to Azure from zone-level failures. see [About zone-redundant virtual network gateways in Azure Availability Zones](about-zone-redundant-vnet-gateways.md)