doc: update IRC reference to Libera.Chat

diff --git a/README b/README
index 2bbf6ec0c147b920c535b78b4fbfc6b5ad885bbd..234b0efd336e42fef8bddd27f0edd910d69fe50c 100644 (file)
--- a/README
+++ b/README
@@ -74,7 +74,7 @@ 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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