[gtk+] docs: Fix a dangling link

[Matthias Clasen <matthiasc src gnome org>]

commit 64c15545c32f49d7f417d460f978cd63d3253861
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Aug 11 09:28:58 2016 -0400

    docs: Fix a dangling link
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769601

 docs/reference/gtk/question_index.sgml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/question_index.sgml b/docs/reference/gtk/question_index.sgml
index be1dca7..97f0b79 100644
--- a/docs/reference/gtk/question_index.sgml
+++ b/docs/reference/gtk/question_index.sgml
@@ -36,7 +36,7 @@ How do I get started with GTK+?
 
 <answer><para>
 The GTK+ <ulink url="http://www.gtk.org";>website</ulink> offers some
-<ulink url="http://www.gtk.org/documentation";>tutorials</ulink> and other
+<ulink url="http://www.gtk.org/documentation.php";>tutorials</ulink> and other
 documentation (most of it about GTK+ 2.x, but mostly still applicable).
 More documentation ranging from whitepapers to online books can be found at
 the <ulink url="http://developer.gnome.org";>GNOME developer's site</ulink>.