[Profiler] Fix obsolete link

Author: Mathieu

profiler.rst

@@ -92,7 +92,7 @@ Run this command to get the list of collectors actually enabled in your app:
 
     $ php bin/console debug:container --tag=data_collector
 
-You can also :doc:`create your own data collector </profiler/data_collector>` to
+You can also :ref:`create your own data collector <profiler-data-collector>` to
 store any data generated by your app and display it in the debug toolbar and the
 profiler web interface.