Link from introduction section

Author: raulfraile

components/translation/introduction.rst

@@ -62,8 +62,9 @@ The Translation component uses Loader classes to load catalogs. You can load
 multiple resources for the same locale, which will then be combined into one
 catalog.
 
-The component comes with some default Loaders and you can create your own
-Loader too. The default loaders are:
+The component comes with some default Loaders and you can
+:doc:`create your own Loader too</components/translation/custom_formats>`. The
+default loaders are:
 
 * :class:`Symfony\\Component\\Translation\\Loader\\ArrayLoader` - to load
   catalogs from PHP arrays.