[gtk/ebassi/for-master: 1/3] docs: Update link to the discussion forum

[Emmanuele Bassi <ebassi src gnome org>]

commit 55d2f190ef977ea090d1965ffe13510372326b77
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Apr 29 12:47:57 2020 +0100

    docs: Update link to the discussion forum
    
    The README file still links to the old web page about mailing lists; the
    link is now a 404 after the website redesign, and we don't use mailing
    lists any more, in favour of Discourse.

 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README.md b/README.md
index 42ab872115..a4ec1a0452 100644
--- a/README.md
+++ b/README.md
@@ -27,9 +27,9 @@ The official developers blog
 
   - https://blog.gtk.org
 
-Information about mailing lists can be found at
+Discussion forum
 
-  - http://www.gtk.org/mailing-lists.php
+  - https://discourse.gnome.org/c/platform/core/
 
 Nightly documentation can be found at
   - Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk/