Updated documentation and added demo-project.

demo-project/app/Controllers/DefaultController.php

@@ -0,0 +1,25 @@
+<?php
+namespace Demo\Controllers;
+
+class DefaultController {
+
+    public function index() {
+
+        // implement
+        echo 'DefaultController -> index';
+
+    }
+
+    public function contact() {
+
+        echo 'DefaultController -> contact';
+
+    }
+
+    public function companies($id = null) {
+
+        echo 'DefaultController -> companies -> id: ' . $id;
+
+    }
+
+}