[gtk: 1/3] Update broken links in README.md

[Emmanuele Bassi <ebassi src gnome org>]

commit 9b671d1f799669d44cadfd558af4057d8b023de9
Author: Akam Foad <akamfanaye gmail com>
Date:   Thu Jun 3 14:02:59 2021 +0000

    Update broken links in README.md
    
    Updated Release notes links from https://developer.gnome.org/gtkX/unstable/YYYY.html
    to https://developer.gnome.org/gtkX/stable/YYYY.html in the README.md file in the root
    folder.
    
    Closes #4001

 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README.md b/README.md
index e136f8a890..e17386c222 100644
--- a/README.md
+++ b/README.md
@@ -157,8 +157,8 @@ Release notes
 The release notes for GTK are part of the migration guide in the API
 reference. See:
 
- - [3.x release notes](https://developer.gnome.org/gtk3/unstable/gtk-migrating-2-to-3.html)
- - [4.x release notes](https://developer.gnome.org/gtk4/unstable/gtk-migrating-3-to-4.html)
+ - [3.x release notes](https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html)
+ - [4.x release notes](https://developer.gnome.org/gtk4/stable/gtk-migrating-3-to-4.html)
 
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