added links with info about clients and packagist link

Author: yamiko

components/browser_kit/introduction.rst

@@ -33,4 +33,11 @@ Submiting Forms
 ~~~~~~~~~~~~~~~~
 
 Creating a Client
------------------
+-----------------
+
+For a simple implementation of a browser based on an HTTP layer, have a look at Goutte_.
+
+For an implementation based on HttpKernelInterface, have a look at the Client provided by the :doc:`/components/http_kernel/introduction`.
+
+.. _Packagist: https://packagist.org/packages/symfony/event-dispatcher
+.. _Goutte: https://github.com/fabpot/Goutte