Update README to Include Repository URL for Jellyfin v10.11

Author: jaruba

README.md

@@ -16,6 +16,10 @@ Currently supports:
 
 - Repository for Jellyfin:
   - Add this URL to the list:
+    - For **Jellyfin 10.11**
+      ```
+      https://raw.githubusercontent.com/RatingPosterDB/Jellyfin.Plugin.RPDB/refs/heads/main/repo/jellyfin_10.11.json
+      ```
     - For **Jellyfin 10.10**
       ```
       https://raw.githubusercontent.com/RatingPosterDB/Jellyfin.Plugin.RPDB/refs/heads/main/repo/jellyfin_10.10.json