update old app note at Roger's request

Author: Colby Tresness

articles/azure-functions/functions-deployment-technologies.md

@@ -60,7 +60,7 @@ When you change any of your triggers, the Functions infrastructure must be aware
 Azure Functions can automatically perform builds on the code it receives after zip deployments. These builds behave slightly differently depending on whether your app is running on Windows or Linux. Remote builds are not performed when an app has previously been set to run in [Run From Package](run-functions-from-deployment-package.md) mode. To learn how to use remote build, navigate to [zip deploy](#zip-deploy).
 
 > [!NOTE]
-> If you're having issues with remote build, it might be because your app was created before the feature was made available (August 1, 2019). Try creating a new function app.
+> If you're having issues with remote build, it might be because your app was created before the feature was made available (August 1, 2019). Try creating a new function app, or running `az functionapp update -g <RESOURCE_GROUP_NAME> -n <APP_NAME>` to update your function app. This command might take two tries to succeed.
 
 #### Remote build on Windows