Update to link to topic.

Author: vmagelo

README.md

@@ -1,6 +1,6 @@
 # Deploy a Python (Flask) web app with PostgreSQL in Azure
 
-This is a Python web app using the Flask framework and the Azure Database for PostgreSQL relational database service. The Flask app is hosted in a fully managed Azure App Service. This app is designed to be be run locally and then deployed to Azure. For more information on how to use this web app, see the tutorial *Deploy a Django/Flask web app with PostgreSQL in Azure* (Link TBD).
+This is a Python web app using the Flask framework and the Azure Database for PostgreSQL relational database service. The Flask app is hosted in a fully managed Azure App Service. This app is designed to be be run locally and then deployed to Azure. For more information on how to use this web app, see the tutorial [*Deploy a Django/Flask web app with PostgreSQL in Azure*](https://docs.microsoft.com/en-us/azure/app-service/tutorial-python-postgresql-app).
 
 If you need an Azure account, you can [create on for free](https://azure.microsoft.com/free/).