Update header for consistency

Author: alvinashcraft

hub/apps/windows-app-sdk/mrtcore/images-tailored-for-scale-theme-contrast.md

@@ -97,7 +97,7 @@ Absolute paths are a good choice if your image files remain where they are in th
 
 Also see [Tile and toast support for language, scale, and high contrast](/windows/apps/design/shell/tiles-and-notifications/tile-toast-language-scale-contrast).
 
-## Load an images and other resources from a class library
+## Reference an image or other asset from a class library
 
 You can load images and other resources from a referenced **Class library (WinUI 3 in Desktop)** project by referencing the resource in a URI that uses the `ms-appx` scheme. The URI should include the name of the class library project and the path to the resource within the class library project. For example, if you have a class library project named `MyClassLibrary` that contains an image named `logo.png` in a folder named `Assets`, you can reference the image in your app project like this: