Fix path to composer autoload script in index.php

Author: devanych

public/index.php

@@ -5,7 +5,7 @@
 use HttpSoft\Basis\Application;
 use HttpSoft\ServerRequest\ServerRequestCreator;
 
-require_once __DIR__ . '/../../../../vendor/autoload.php';
+require_once __DIR__ . '/../vendor/autoload.php';
 
 $container = require_once __DIR__ . '/../config/container.php';
 $app = $container->get(Application::class);