Document logging use Django's LOGGING setting

docs/logging.rst

@@ -1,17 +1,19 @@
 Logging
 =======
 
-:class:`~django_auth_ldap.backend.LDAPBackend` uses the standard logging module
-to log debug and warning messages to the logger named ``'django_auth_ldap'``. If
-you need debug messages to help with configuration issues, you should add a
-handler to this logger. Note that this logger is initialized with a level of
-NOTSET, so you may need to change the level of the logger in order to get debug
-messages.
+:class:`~django_auth_ldap.backend.LDAPBackend` uses the standard Python
+:mod:`logging` module to log debug and warning messages to the logger named
+``'django_auth_ldap'``. If you need debug messages to help with configuration
+issues, you should add a handler to this logger. Using Django's
+:setting:`LOGGING` setting, you can add an entry to your config.
 
 .. code-block:: python
 
-    import logging
-
-    logger = logging.getLogger('django_auth_ldap')
-    logger.addHandler(logging.StreamHandler())
-    logger.setLevel(logging.DEBUG)
+    LOGGING = {
+        'loggers': {
+            'django_auth_ldap': {
+                'level': 'DEBUG',
+                'handlers': ['console'],
+            },
+        },
+    }