Update README.md

Author: jasonmccreary

README.md

@@ -36,7 +36,9 @@ $factory->define(App\User::class, function (Faker\Generator $faker) {
         'username' => $faker->userName,
         'email' => $faker->safeEmail,
         'password' => bcrypt($faker->password),
-        'company_id' => factory(App\Company::class)->create()->id,
+        'company_id' => function () {
+            return factory(App\Company::class)->create()->id;
+        },
         'remember_token' => Str::random(10),
     ];
 });