update code

database/seeds/DocumentSeeder.php

@@ -0,0 +1,17 @@
+<?php
+
+use Illuminate\Database\Seeder;
+
+class DocumentSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        factory(App\Entities\Document::class, 100)->create();
+        factory(App\Entities\Attachment::class, 20)->create();
+    }
+}