added --runtime parameter to az webapp create command in step 2 to address gh issue 46365

Author: JimacoMS3

articles/iot-hub/iot-hub-live-data-visualization-in-web-apps.md

@@ -160,10 +160,10 @@ In this section, you provision a web app in App Service and deploy your code to
    az appservice plan create --name <app service plan name> --resource-group <your resource group name> --sku FREE
    ```
 
-2. Now provision a web app in your App Service plan. The `--deployment-local-git` parameter enables the web app code to be uploaded and deployed from a Git repository on your local machine. Your web app name must be globally unique and can contain upper and lower case letters, numbers, and hyphens.
+2. Now provision a web app in your App Service plan. The `--deployment-local-git` parameter enables the web app code to be uploaded and deployed from a Git repository on your local machine. Your web app name must be globally unique and can contain upper and lower case letters, numbers, and hyphens. Be sure to specify Node version 10.6 or later for the `--runtime` parameter, depending on the version of the Node.js runtime you are using. You can use the `az webapp list-runtimes` command to get a list of  supported runtimes.
 
    ```azurecli-interactive
-   az webapp create -n <your web app name> -g <your resource group name> -p <your app service plan name> --deployment-local-git
+   az webapp create -n <your web app name> -g <your resource group name> -p <your app service plan name> --runtime "node|10.6" --deployment-local-git
    ```
 
 3. Now add Application Settings for the environment variables that specify the IoT hub connection string and the Event hub consumer group. Individual settings are space delimited in the `-settings` parameter. Use the service connection string for your IoT hub and the consumer group you created previously in this tutorial. Don't quote the values.