README.md: Drop dead mailing list, link to GH discussions

While I resisted taking the next step in binding ourselves
more to GH with discussions...it's way, way better than answering
questions out of band in private (also proprietary) chats.

We haven't been successful in using the GNOME discussion forums.

diff --git a/README.md b/README.md
index 7073cbda08c3240be6010cfeaa338a5f8d927c08..a5e97f791f1028d211ba4ec106f6a51f2e3a5cea 100644 (file)
--- a/README.md
+++ b/README.md
@@ -158,9 +158,8 @@ make install DESTDIR=/path/to/dest
 
 ## Contact and discussion forums
 
-OSTree has a [mailing list](https://mail.gnome.org/archives/ostree-list/) and
-there is also an `#ostree` channel on [Libera.Chat](ircs://irc.libera.chat/ostree).  However, asynchronous+logged
-communication is preferred for nontrivial questions.
+There is also an `#ostree` channel on [Libera.Chat](ircs://irc.libera.chat/ostree) as
+well as [enabled Github discussions](https://github.com/ostreedev/ostree/discussions/).
 
 ## Contributing