clarify what the breaking change looks like

Author: jasonvarga

content/collections/pages/5-to-6.md

@@ -597,6 +597,29 @@ The `urlencode` and `rawurlencode` modifiers now encode forward slashes (`/`). I
 
 The `logged_in` variable now uses the authentication guard configured in Statamic's `users` config file, rather than the default Laravel guard.
 
+```php
+// config/auth.php [tl! **]
+return [
+    'defaults' => [ // [tl! **]
+        // v5 used this 👇 [tl! -- **]
+        'guard' => env('AUTH_GUARD', 'web'), // [tl! **]
+        'passwords' => env('AUTH_PASSWORD_BROKER', 'users'),
+    ],
+]
+
+// config/statamic/users.php [tl! **]
+return [
+    'guards' => [  // [tl! **]
+        'cp' => 'web',
+        // v6 uses this 👇 [tl! ++ **]
+        'web' => 'web',  // [tl! **]
+    ],   
+];
+```
+
+In the majority of cases, this results in the exact same behavior.
+
+
 ### Full-measure Static caching
 **Affects apps that use full-measure static caching and customize the JS behavior**