[gnome-devel-docs] platform-demos: Fix broken 404 links to GtkMenuButton

[Andre Klapper <aklapper src gnome org>]

commit 5bcb45d90d6eaa7da6b0f3994c6ada394ae5abf7
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Mar 1 19:07:14 2019 +0100

    platform-demos: Fix broken 404 links to GtkMenuButton

 platform-demos/C/menubutton.js.page   | 2 +-
 platform-demos/C/menubutton.vala.page | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/platform-demos/C/menubutton.js.page b/platform-demos/C/menubutton.js.page
index 92fbf591..2f174e59 100644
--- a/platform-demos/C/menubutton.js.page
+++ b/platform-demos/C/menubutton.js.page
@@ -30,6 +30,6 @@ The GtkMenuButton widget can hold any valid child widget. That is, it can hold a
   In this sample we used the following:
 </p>
 <list>
-  <item><p><link 
href="http://developer.gnome.org/gtk3/3.5/gtk3-GtkMenuButton.html";>MenuButton</link></p></item>
+  <item><p><link 
href="https://developer.gnome.org/gtk3/unstable/GtkMenuButton.html";>MenuButton</link></p></item>
 </list>
 </page>
diff --git a/platform-demos/C/menubutton.vala.page b/platform-demos/C/menubutton.vala.page
index dff81179..d10fa11f 100644
--- a/platform-demos/C/menubutton.vala.page
+++ b/platform-demos/C/menubutton.vala.page
@@ -30,6 +30,6 @@ The GtkMenuButton widget can hold any valid child widget. That is, it can hold a
   In this sample we used the following:
 </p>
 <list>
-  <item><p><link 
href="http://developer.gnome.org/gtk3/3.5/gtk3-GtkMenuButton.html";>MenuButton</link></p></item>
+  <item><p><link 
href="https://developer.gnome.org/gtk3/unstable/GtkMenuButton.html";>MenuButton</link></p></item>
 </list>
 </page>