Update README.md

Author: KaffinPX

README.md

@@ -27,6 +27,12 @@ To run this game you need to start real minecraft server (by default it is 1.16.
 
 </details>
 
+<details>
+<summary>Minecraft premium support</summary>
+You can add premium=true parameter to url for premium, it will open a prompt, write password and tada.
+
+</details>
+
 <details>
 <summary>Linting</summary>