diff -r 4a258d47f964 -r b1ac0dd1d38b ui/winui/readme.txt
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+========================================================================
+    winui Project Overview
+========================================================================
+
+This project demonstrates how to get started writing WinUI3 apps directly
+with standard C++, using the Windows App SDK and C++/WinRT packages and
+XAML compiler support to generate implementation headers from interface
+(IDL) files. These headers can then be used to implement the local
+Windows Runtime classes referenced in the app's XAML pages.
+
+Steps:
+1. Create an interface (IDL) file to define any local Windows Runtime
+    classes referenced in the app's XAML pages.
+2. Build the project once to generate implementation templates under
+    the "Generated Files" folder, as well as skeleton class definitions
+    under "Generated Files\sources".
+3. Use the skeleton class definitions for reference to implement your
+    Windows Runtime classes.
+
+========================================================================
+Learn more about Windows App SDK here:
+https://docs.microsoft.com/windows/apps/windows-app-sdk/
+Learn more about WinUI3 here:
+https://docs.microsoft.com/windows/apps/winui/winui3/
+Learn more about C++/WinRT here:
+http://aka.ms/cppwinrt/
+========================================================================