[gtk-web/new-website] Link to the releases page on GitLab

[Emmanuele Bassi <ebassi src gnome org>]

commit bd702c129a95f5f281f4a275101f0b10b4e858c9
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Feb 18 19:14:53 2020 +0000

    Link to the releases page on GitLab

 _data/navigation.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/_data/navigation.yml b/_data/navigation.yml
index 90e68c4..b1a8c04 100644
--- a/_data/navigation.yml
+++ b/_data/navigation.yml
@@ -48,9 +48,10 @@ menu_links:
     section: Project
     external: true
   - name: Releases
-    href: /releases/
+    href: https://gitlab.gnome.org/GNOME/gtk/-/releases
     header: false
     footer: true
+    external: true
     section: Project
   - name: FAQs
     href: https://developer.gnome.org/gtk3/stable/gtk-question-index.html