docs: add example to return "return type object"

Author: kenjis

user_guide_src/source/testing/fabricator/005.php

@@ -4,6 +4,8 @@
 
 class UserModel
 {
+    // ...
+
     public function fake(Generator &$faker)
     {
         return [
@@ -13,5 +15,18 @@ public function fake(Generator &$faker)
             'avatar' => Faker\Provider\Image::imageUrl(800, 400),
             'login'  => config('Auth')->allowRemembering ? date('Y-m-d') : null,
         ];
+
+        /*
+         * Or you can return a return type object.
+
+        return new User([
+            'first'  => $faker->firstName,
+            'email'  => $faker->email,
+            'phone'  => $faker->phoneNumber,
+            'avatar' => Faker\Provider\Image::imageUrl(800, 400),
+            'login'  => config('Auth')->allowRemembering ? date('Y-m-d') : null,
+        ]);
+
+        */
     }
 }