Fix autoload

composer.json

@@ -10,6 +10,9 @@
         }
     ],
     "minimum-stability": "dev",
+    "autoload": {
+        "psr-4": {"amateo\\HelloTest\\": "src/"}
+    },
     "require": {
         "php": ">=7.4.13"
     },

src/index.php

 <?php
 
-    namespace vitalis\HelloWorld;
+    namespace amateo\HelloTest;
 
     class Index
     {