urfatBro/app/core/welcome/Routes.php

<?php

use RR\Response;
 use App\Core\Template\Output as Output;
use Routes\RouteCollection as RouteCollection;

RouteCollection::add('get', '/', '\App\Core\Welcome\WelcomeController@welcome');
//RouteCollection::add('get', '/welcome', 'WellcomeController@welcome');