[gtk+] docs: fix reference to GTK+ 2 index of deprecated symbols

[Frederic Peters <fpeters src gnome org>]

commit 70775e1985ed14552964bf5c8f26d7b84275adc9
Author: Frédéric Péters <fpeters 0d be>
Date:   Sun Mar 8 09:43:04 2015 +0100

    docs: fix reference to GTK+ 2 index of deprecated symbols

 docs/reference/gtk/migrating-2to3.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/migrating-2to3.xml b/docs/reference/gtk/migrating-2to3.xml
index 7fe9763..9441955 100644
--- a/docs/reference/gtk/migrating-2to3.xml
+++ b/docs/reference/gtk/migrating-2to3.xml
@@ -83,7 +83,7 @@
     widgets have been deprecated. These deprecations are clearly spelled
     out in the API reference, with hints about the recommended replacements.
     The API reference for GTK+ 2 also includes an
-    <ulink url="http://developer.gnome.org/gtk/2.24/api-index-deprecated.html";>index</ulink> of all 
deprecated symbols.
+    <ulink url="https://developer.gnome.org/gtk2/2.24/api-index-deprecated.html";>index</ulink> of all 
deprecated symbols.
   </para>
   <para>
     To verify that your program does not use any deprecated symbols,