Update README.md

Author: michaljaz

README.md

@@ -6,7 +6,7 @@
 [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
 ## About
 
-**Webmc is minecraft client written in Javascript.** From web browser this client connects to websocket proxy and then to real minecraft server, so you can play minecraft in the browser.
+**Webmc is proof of concept minecraft client written in Javascript.** From web browser this client connects to websocket proxy and then to real minecraft server, so you can play minecraft in the browser.
 
 ## Demo
 Live demo with no installation: https://webmc.js.org.