update readme

README.md

@@ -24,5 +24,10 @@ Installing mods from the workshop currently is not supported.
 2. Choose mods and DLCs from the list that you want to play with
 3. Click the "PLAY" button to start the game with the selected options.
 
+## Dependencies
+- [AvaloniaUI](https://avaloniaui.net/) — A cross-platform UI framework for .NET
+- [MessageBox.Avalonia](https://github.com/AvaloniaCommunity/MessageBox.Avalonia) — Messagebox for AvaloniaUI
+- [Game icon](https://www.reddit.com/r/hoi4/comments/85l962/new_game_icon_made_by_me_the_original_sucks_free/) made by [tudor088](https://www.reddit.com/user/tudor088/)
+
 ## License
 This HOI4Launcher is licensed under the [GNU GPL v3.0](LICENSE.md).