changes based on @Stacyrch140 review

Author: chatasweetie

learn-pr/windows/winui-101/includes/1-introduction.md

@@ -1,6 +1,6 @@
 Building Windows apps is an exciting journey into creating software that runs seamlessly on the Windows operating system, and this course guides you through the development process step by step. Whether you're building simple utilities or complex enterprise solutions, this learning path introduces you to the latest Windows development frameworks: the Windows App SDK and WinUI. Together, these frameworks provide a robust foundation for creating high-performance, visually appealing applications that use modern Windows capabilities while maintaining compatibility across devices.
 
-:::image type="content" source="../media/1-introduction/tech-stack.png" alt-text="Highlevel Overview of Windows Techstack.":::
+:::image type="content" source="../media/1-introduction/tech-stack.png" alt-text="Diagram of Highlevel Overview of Windows Tech stack.":::
 
 The **Windows App SDK** offers a comprehensive set of tools, libraries, and APIs that enable developers to build feature-rich applications with cutting-edge functionality. Crucially, this SDK decouples from the underlying operating system, allowing your app to access the latest features without being tied to a specific Windows version. This decoupling ensures wide compatibility across devices while delivering modern capabilities. **WinUI**, as part of the Windows SDK, is a powerful user interface framework that provides a rich set of controls and styles for building applications with a consistent and modern look. The **Windows Community Toolkit** complements these frameworks by providing a collection of helper functions, custom controls, and app services. These resources help simplify and demonstrate common developer tasks, which speeds up the development process.
 

learn-pr/windows/winui-101/includes/2-dev-set-up.md

@@ -101,7 +101,7 @@ The Community Toolkit.Mvvm uses features that are ahead of the standard C# langu
 23. **Locate** the first `PropertyGroup` element in the file
 24. **Add** `<LangVersion>preview</LangVersion>`
 
-:::image type="content" source="../media/2-dev-set-up/language-version.png" alt-text="Screenshot of file with added LangVersion element":::
+:::image type="content" source="../media/2-dev-set-up/language-version.png" alt-text="Screenshot of file with added LangVersion element.":::
 
 25. **Save and Close** the file