add note on cursor double render

Author: thelamer

README.md

@@ -60,6 +60,8 @@ The application can be accessed at:
 
 * https://yourhost:3001/
 
+**The cursor double renders during gameplay, you can use "gaming mode" in the sidebar to get around this.**
+
 ### Strict reverse proxies
 
 This image uses a self-signed certificate by default. This naturally means the scheme is `https`.

readme-vars.yml

@@ -40,6 +40,7 @@ app_setup_block: |
 
   * https://yourhost:3001/
 
+  **The cursor double renders during gameplay, you can use "gaming mode" in the sidebar to get around this.**
 # changelog
 changelogs:
   - {date: "25.08.25:", desc: "Initial release."}