doc: update IRC reference to Libera.Chat

diff --git a/README b/README
index d4056b3cd33c0d03b1045bfe05e5d6f76a480d68..61de9b21df76ce1647796ed31b64dc3cdc1f7be0 100644 (file)
--- a/README
+++ b/README
@@ -109,7 +109,7 @@ Mailing list
 IRC
 ---
 
-You can find the sigrok developers in the #sigrok IRC channel on Freenode.
+You can find the sigrok developers in the #sigrok IRC channel on Libera.Chat.
 
 
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