we need a label to reference this from the bundle

Author: dbu

doc/proxy-clients.rst

@@ -189,6 +189,8 @@ dispatcher as explained above and pass it to the Symfony client::
 
  To make invalidation work, you need to :doc:`use the EventDispatchingHttpCache <symfony-cache-configuration>`.
 
+.. _proxy client symfony httpcache kernel dispatcher:
+
 KernelDispatcher for Single Server Installations
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^