Update community link and add discord badge (#1240)

This branch updates the community link to point to the discord community
and adds an additional badge to the header.

README.md

@@ -1,16 +1,31 @@
 # PeerJS: Simple peer-to-peer with WebRTC
 
-### https://t.me/joinchat/VWI0UBxnG7f7_DV7
-
 [![Backers on Open Collective](https://opencollective.com/peer/backers/badge.svg)](#backers)
 [![Sponsors on Open Collective](https://opencollective.com/peer/sponsors/badge.svg)](#sponsors)
+[![Discord](https://img.shields.io/discord/1016419835455996076?color=5865F2&label=Discord&logo=discord&logoColor=white)](https://discord.gg/Ud2PvAtK37)
 
 PeerJS provides a complete, configurable, and easy-to-use peer-to-peer API built on top of WebRTC, supporting both data channels and media streams.
 
 ## Live Example
 
 Here's an example application that uses both media and data connections: https://glitch.com/~peerjs-video. The example also uses its own [PeerServer](https://github.com/peers/peerjs-server).
 
+---
+
+<p align="center">
+  <sup>Special Announcement:</sup>
+  <br>
+  <a href="https://discord.gg/mpWSRUhG7e">
+    <img width="70px" src="https://assets-global.website-files.com/6257adef93867e50d84d30e2/625e5fcef7ab80b8c1fe559e_Discord-Logo-Color.png">
+  </a>
+  <br>
+  <sub><b>We now have a Discord Channel</b></sub>
+  <br>
+  <sub>There we plan to discuss roadmaps, feature requests, and more<br><a href="https://discord.com/invite/4QWgSz4hTC">Join us today</a></sub>
+</p>
+
+---
+
 ## Setup
 
 **Include the library**