docs: replace freenode with libera

README.md

@@ -2,7 +2,7 @@
 
 [![Build Status](https://img.shields.io/travis/lightningnetwork/lnd.svg)](https://travis-ci.org/lightningnetwork/lnd)
 [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/lightningnetwork/lnd/blob/master/LICENSE)
-[![Irc](https://img.shields.io/badge/chat-on%20freenode-brightgreen.svg)](https://webchat.freenode.net/?channels=lnd)
+[![Irc](https://img.shields.io/badge/chat-on%20libera-brightgreen.svg)](https://web.libera.chat/#lnd)
 [![Godoc](https://godoc.org/github.com/lightningnetwork/lnd?status.svg)](https://godoc.org/github.com/lightningnetwork/lnd)
 
 <img src="logo.png">
@@ -70,9 +70,9 @@ discuss various aspects of `lnd` and also Lightning in general.
   To run lnd from Docker, please see the main [Docker instructions](docs/DOCKER.md)
 
 ## IRC
-  * irc.freenode.net
+  * irc.libera.chat
   * channel #lnd
-  * [webchat](https://webchat.freenode.net/?channels=lnd)
+  * [webchat](https://web.libera.chat/#lnd)
 
 ## Safety