Replace the gitter badge with discord

Author: kh31d4r

README.md

@@ -1,8 +1,9 @@
 Marvin, an IRC bot
 ==================
 
-[![Join the chat at https://gitter.im/mosbth/irc2phpbb](https://badges.gitter.im/mosbth/irc2phpbb.svg)](https://gitter.im/mosbth/irc2phpbb?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Join the chat at https://discord.gg/6qQATZjv](https://dcbadge.limes.pink/api/server/https://discord.gg/6qQATZjv?theme=default-inverted)](https://discord.gg/6qQATZjv)
 [![Build Status](https://github.com/mosbth/irc2phpbb/actions/workflows/main.yml/badge.svg)](https://github.com/mosbth/irc2phpbb/actions)
+=======
 
 Get a quick start by checking out the main script `main.py` and read on how to contribute.