Updated the GObject tutorial link

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2723>

diff --git a/subprojects/gst-docs/markdown/plugin-development/introduction/preface.md b/subprojects/gst-docs/markdown/plugin-development/introduction/preface.md
index 3621bb0..49a4fa2 100644 (file)
--- a/subprojects/gst-docs/markdown/plugin-development/introduction/preface.md
+++ b/subprojects/gst-docs/markdown/plugin-development/introduction/preface.md
@@ -78,7 +78,7 @@ site](http://gstreamer.freedesktop.org/documentation/).
 In order to understand this manual, you will need to have a basic
 understanding of the C language. Since GStreamer adheres to the GObject
 programming model, this guide also assumes that you understand the
-basics of [GObject](http://developer.gnome.org/gobject/stable/pt01.html)
+basics of [GObject](https://docs.gtk.org/gobject/concepts.html)
 programming. You may also want to have a look at Eric Harlow's book
 *Developing Linux Applications with GTK+ and GDK*.