Add alternative installation instructions for WAU Settings GUI (for home admin users)

Author: KnifMelti

README.md

@@ -26,6 +26,8 @@ The following command will install WAU through winget itself in the newest versi
 ```batch
 winget install Romanitho.Winget-AutoUpdate
 ```
+#### Alternative installation (for home admin users)
+You can also download the latest release of the add-on [WAU Settings GUI (for Winget-AutoUpdate)](https://github.com/KnifMelti/WAU-Settings-GUI) and install it (this will install **WAU** and the **GUI** to manage **WAU settings**).
 
 ## Configurations
 ### Keep some apps out of Winget-AutoUpdate