Updated readme

Author: joni-jones

README.md

@@ -51,10 +51,21 @@ extension to store messages history, so you need just specify connection in `con
     - Create action to start server:
 
         ```php
-        public function actionRun()
+        namespace app\commands;
+
+        use jones\wschat\components\Chat;
+        use jones\wschat\components\ChatManager;
+        use Ratchet\Server\IoServer;
+        use Ratchet\Http\HttpServer;
+        use Ratchet\WebSocket\WsServer;
+        
+        class ServerController extends \yii\console\controller
         {
-            $server = IoServer::factory(new HttpServer(new WsServer(new Chat(new ChatManager()))), 8080);
-            $server->run();
+            public function actionRun()
+            {
+                $server = IoServer::factory(new HttpServer(new WsServer(new Chat(new ChatManager()))), 8080);
+                $server->run();
+            }
         }
         ```