Switch to Libera #2

missed that

Author: EvilOlaf

README.md

@@ -121,7 +121,7 @@ Armbian [releases](https://docs.armbian.com/Release_Changelog/) quarterly at the
 - Engage in [Armbian build framework forums](https://forum.armbian.com/forum/4-development/),
 - Check [Jira project management application](https://armbian.atlassian.net/browse/AR) status,
 - Make use of [central project search engine](https://www.armbian.com/search),
-- Browse [IRC channel logs](http://irc.armbian.com) or interact at #armbian on [freenode](https://freenode.net/).
+- Browse [IRC channel logs](http://irc.armbian.com) or interact at #armbian on [Libera](https://libera.chat/).
 
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