fix wording

bootstrap/autoload.php

@@ -9,8 +9,8 @@ define('LARAVEL_START', microtime(true));
 |
 | Composer provides a convenient, automatically generated class loader
 | for our application. We just need to utilize it! We'll require it
-| into the script here so that we do not have to worry about the
-| loading of any our classes "manually". Feels great to relax.
+| into the script here so we do not have to manually load any of
+| our application's PHP classes. It just feels great to relax.
 |
 */