feature #4605 Adding a link to log things in the prod environment (weaverryan)

This PR was merged into the 2.6 branch.

Discussion
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Adding a link to log things in the prod environment

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | no
| Applies to    | 2.6+
| Fixed tickets | n/a

Hiya guys!

This just adds a link so you have some details on how you could log this stuff in the `prod` environment.

Thanks!

Commits
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657284e Adding a link to log things in the prod environment

Author: weaverryan

reference/configuration/framework.rst

@@ -644,6 +644,10 @@ API. The ``api`` option is used to switch between the different implementations:
     legacy implementation and the ``2.5`` implementation. You have to use
     PHP 5.3.9 or higher to be able to use this implementation.
 
+To capture these logs in the ``prod`` environment, configure a
+:doc:`channel handler </cookbook/logging/channels_handlers>` in ``config_prod.yml`` for
+the ``translation`` channel and set its ``level`` to ``debug``.
+
 Full default Configuration
 --------------------------