Update README.md

Author: fendor

README.md

@@ -760,7 +760,7 @@ it to look for the right executable.
 
 :heart: The Haskell tooling dream is near, we need your help! :heart:
 
-- Join [our IRC channel](https://webchat.freenode.net/?channels=haskell-language-server) at `#haskell-language-server` on `freenode`.
+- Join [our IRC channel](https://web.libera.chat/) at `#haskell-language-server` on [`libera`](https://libera.chat/).
 - Fork this repo and [ghcide](https://github.com/haskell/ghcide) and hack as much as you can.
 
 ### Style guidelines