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

diff --git a/README.md b/README.md
index e136f8a890c50ea105abef512b7384f497159ed3..e17386c222e2b22c699518f3fdc5f0de8b68404f 100644 (file)
--- 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)
 
 Licensing terms
 ---------------