woo order notification cuztomization

Hello,
great plugin.

I would like to have the order URL instead of the site URL at the end of the notification send to telegram when new order is created.

I have to change to code to something like that :

        public function telefication_action_woocommerce_thankyou( $order_id ) {
...
                //$message .= site_url();
                $message .= $order->get_edit_order_url();

But a customizable template would be better because I will loose my changes when I update the plugin …