docs: Screenshot of the app's menu in the README

CHANGELOG.md

@@ -7,7 +7,8 @@ one per merged pull request.
 
 ## 2.4.0 - 2026-09-27
 
-- **chore: Version 2.4.0**
+- **docs: Screenshot of the app's menu in the README**
+- `03a8b8c` **chore: Version 2.4.0**
 - `e699a3f` **refactor(ui): One QML file per screen; the HDMI boost's setup screens and backend commands removed**
 
 ## 2.3.0 - 2026-09-27

README.md

@@ -1,5 +1,7 @@
 # Steamify CachyOS
 
+![The Steamify app's menu on a Steam Machine](assets/screenshot-menu.png)
+
 Turn a CachyOS desktop PC into a SteamOS-style console: it boots straight
 into Steam's Big Picture (gamescope), and you can switch to the KDE Plasma
 desktop and back whenever you like - just like on a Steam Deck or Valve's