Update vpn-gateway-about-vpn-devices.md

Author: cynthn

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

@@ -4,7 +4,7 @@ titleSuffix: Azure VPN Gateway
 description: Learn about VPN devices and IPsec parameters for Site-to-Site cross-premises connections. Links are provided to configuration instructions and samples.
 author: cherylmc
 ms.service: azure-vpn-gateway
-ms.topic: article
+ms.topic: concept-article
 ms.date: 10/06/2023
 ms.author: cherylmc