[gtk: 1/2] Update docs/reference/gtk/migrating-3to4.md

[Matthias Clasen <matthiasc src gnome org>]

commit 6633f4e02fae4a75d468d6d4fd9d4d597384388d
Author: Sri Ramkrishna <sri ramkrishna me>
Date:   Wed Jan 19 19:24:01 2022 +0000

    Update docs/reference/gtk/migrating-3to4.md

 docs/reference/gtk/migrating-3to4.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/migrating-3to4.md b/docs/reference/gtk/migrating-3to4.md
index c45098d777..38649152be 100644
--- a/docs/reference/gtk/migrating-3to4.md
+++ b/docs/reference/gtk/migrating-3to4.md
@@ -1382,5 +1382,5 @@ a new family of widgets for this purpose that uses list models instead
 of tree models, and widgets instead of cell renderers.
 
 To learn more about the new list widgets, you can read the [List Widget
-Overview](#ListWidget).
+Overview](https://docs.gtk.org/gtk4/section-list-widget.html).