chore: reference recent screenshots in README.md

Author: tobexyz

README.md

@@ -22,8 +22,8 @@ height="80">](https://f-droid.org/packages/de.yaacc/)
 ![Downloads (all time)](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fgithub.com%2Fkitswas%2Ffdroid-metrics-dashboard%2Fraw%2Frefs%2Fheads%2Fmain%2Fprocessed%2Ftotal%2Fde.yaacc.json&query=%24.total_downloads&logo=fdroid&label=Downloads%20(all%20time))
 
 
-<img src="./docs/screenshots/5.0.x/browse_servers.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.0.x/browse_image_folder.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.0.x/browse_receiver.png" alt= “” width="30%" height="30%">
-<img src="./docs/screenshots/5.0.x/music_player.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.0.x/playlist_fully_editable.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.0.x/image_player_show_menu.png" alt= “” width="30%" height="30%">
+<img src="./docs/screenshots/5.1.x/browse_servers.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.1.x/browse_image_folder.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.1.x/browse_receiver.png" alt= “” width="30%" height="30%">
+<img src="./docs/screenshots/5.1.x/music_player.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.1.x/playlist_fully_editable.png" alt= “” width="30%" height="30%"> <img src="./docs/screenshots/5.1.x/image_player_show_menu.png" alt= “” width="30%" height="30%">
 
 ## Description