Create configuration_knowledgebase.rst

added description of the knowledge base settings.

admin_manual/configuration_knowledgebase.rst

@@ -0,0 +1,22 @@
+Knowledge Base Configuration
+============================
+
+The usage of ownCloud is more or less self explaining but nevertheless a user
+might run into a problem where he needs to consult the documentation or knowledge
+base. To ease access to the ownCloud documentation and knowledge base, a help menu
+item is shown in the settings menu by default.
+
+Parameters
+----------
+
+If you want to disable the ownCloud help menu item for some reason you can use
+the ``knowledgebaseenabled`` parameter. The ``knowledgebaseurl`` is used to set
+the http path to the ownCloud help page. (The server should understand OCS
+(Open Collaboration Services).
+
+**Hint:**
+Keep in mind that disabling the help menu item might increase the number of
+support request you have to answer.
+::
+    "knowledgebaseenabled" => true,
+    "knowledgebaseurl"     => "http://api.apps.owncloud.com/v1",