[accerciser] User docs: Fix broken link

[Andre Klapper <aklapper src gnome org>]

commit e2b7e9c6967de15e9d24ad274948598d2a0ead17
Author: Andre Klapper <a9016009 gmx de>
Date:   Sun Mar 23 22:34:21 2014 +0100

    User docs: Fix broken link

 help/C/howto_write_a_plugin.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/howto_write_a_plugin.page b/help/C/howto_write_a_plugin.page
index fa5f822..8958435 100644
--- a/help/C/howto_write_a_plugin.page
+++ b/help/C/howto_write_a_plugin.page
@@ -25,7 +25,7 @@
   <title> Writing Plugins for <app>Accerciser</app></title>
   <p>
     Extending <app>Accerciser</app> with new plugins became much simpler
-    since <link href="http://live.gnome.org/Accerciser/PluginTutorial";>this tutorial</link>
+    since <link href="https://wiki.gnome.org/Apps/Accerciser/PluginTutorial";>this tutorial</link>
     was written. Given that it provides a very detailed explanation about the topic,
     this section consists basically of its original content - only simple editions
     and updates were done.