Add intro sentence to third section

Author: alvinashcraft

hub/apps/windows-dotnet-maui/dall-e-maui-windows.md

@@ -77,7 +77,7 @@ In this section, we'll install the SDK into the .NET MAUI project and initialize
 
 ## Modify your app's UI
 
-In this section, we'll modify the user interface to include an `Image` control that displays a generated image below the recommendation text.
+Next, we'll modify the user interface to include an `Image` control that displays a generated image below the recommendation text.
 
 1. If you are are starting with a new project, copy the XAML for `MainPage.xaml` from the [Create a recommendation app with .NET MAUI and ChatGPT](tutorial-maui-ai.md) tutorial.
 
@@ -113,6 +113,8 @@ In this section, we'll modify the user interface to include an `Image` control t
 
 ## Implement DALL-E image generation
 
+In this section, we'll add a method to handle image generation and call it from the existing `GetRecommendation` method to display the generated image.
+
 1. If you are are starting with a new project, make sure your code in `MainPage.xaml.cs` matches the code from the [Create a recommendation app with .NET MAUI and ChatGPT](tutorial-maui-ai.md) tutorial.
 
 1. Add a method named `GetImageAsync` to handle image generation. The new method will call the OpenAI API to generate an image based on the prompt we'll build in the next step. It returns an `ImageSource` object that is used to display the image in the UI: