Update articles/api-management/how-to-deploy-self-hosted-gateway-kubernetes.md

Author: tomkerkhove

articles/api-management/how-to-deploy-self-hosted-gateway-kubernetes.md

@@ -13,7 +13,7 @@ ms.date: 05/25/2021
 
 This article describes the steps for deploying the self-hosted gateway component of Azure API Management to a Kubernetes cluster.
 
-[!INCLUDE [preview](./includes/preview/preview-callout-self-hosted-gateway-deprecation.md.md)]
+[!INCLUDE [preview](./includes/preview/preview-callout-self-hosted-gateway-deprecation.md)]
 
 > [!NOTE]
 > You can also deploy self-hosted gateway to an [Azure Arc-enabled Kubernetes cluster](how-to-deploy-self-hosted-gateway-azure-arc.md) as a [cluster extension](../azure-arc/kubernetes/extensions.md).