Fix formatting in app service configuration documentation

Author: staleycyn

learn-pr/wwl-azure/configure-azure-app-services/includes/3-create-app-service.md

@@ -8,7 +8,7 @@ Let's examine some of the basic configuration settings you need to create an app
 
 - **Publish**: App Service hosts (publishes) your app as code or as a Docker Container.
 
-- **Runtime stack**: App Service uses a software stack to run your app, including the language and SDK versions. For Linux apps and custom container apps, you can set an optional start-up command or file. Your choices for the stack include .NET Core, .NET Framework, Node.js, PHP, Python, and Ruby. Various versions of each product are available for Linux and Windows.
+- **Runtime stack**: App Service uses a software stack to run your app, including the language and SDK versions. For Linux apps and custom container apps, you can set an optional start-up command or file. Your choices for the stack include .NET Core, .NET Framework, Node.js, PHP, and Python. Various versions of each product are available for Linux and Windows.
 
 - **Operating system**: The operating system for your app runtime stack can be Linux or Windows.
 
@@ -32,4 +32,4 @@ Some of the extra configuration settings can be included in the developer's code
 
 
 > [!TIP]
-> Consider practicing on your own with the [Exercise - Create a web app in the Azure portal](/training/modules/host-a-web-app-with-azure-app-service/3-exercise-create-a-web-app-in-the-azure-portal?pivots=csharp). This exercise provides a sandbox. 
+> Consider practicing on your own with the [Exercise - Create a web app in the Azure portal](/training/modules/host-a-web-app-with-azure-app-service/3-exercise-create-a-web-app-in-the-azure-portal?pivots=csharp). This exercise provides a sandbox.