Merge pull request symfony#561 from richardmiller/fixing_link_in_internals

Fixed link which went to Event Dispatcher page which no longer exists

Author: weaverryan

book/internals.rst

@@ -231,7 +231,7 @@ add the following code at the beginning of your listener method::
 .. tip::
 
  If you are not yet familiar with the Symfony2 Event Dispatcher, read the
- :doc:`dedicated chapter </book/internals/event_dispatcher>` first.
+ :ref:`event_dispatcher` section first.
 
 .. index::
  single: Event; kernel.request
@@ -419,6 +419,8 @@ used. To make this possible, the Symfony2 kernel throws an event -
 .. index::
  single: Event Dispatcher; Events
 
+.. _event_dispatcher:
+
 Events
 ~~~~~~