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

Author: tomkerkhove

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

@@ -13,7 +13,7 @@ ms.author: danlep
 
 This article provides the steps for deploying self-hosted gateway component of Azure API Management to a Docker environment.
 
-[!INCLUDE [preview](./includes/preview/preview-callout-self-hosted-gateway-deprecation.md.md)]
+[!INCLUDE [preview](./includes/preview/preview-callout-self-hosted-gateway-deprecation.md)]
 
 > [!NOTE]
 > Hosting self-hosted gateway in Docker is best suited for evaluation and development use cases. Kubernetes is recommended for production use. Learn how to [deploy with Helm](how-to-deploy-self-hosted-gateway-kubernetes-helm.md) or using [deployment YAML file](how-to-deploy-self-hosted-gateway-kubernetes.md) to learn how to deploy self-hosted gateway to Kubernetes.