public function add($url, $title = '', $parameters = [])
    {
        // If only {$url} specified, use it as title for current page
        if (func_num_args() === 1) {
            return $this->addCurrent($url);
        }

        $url = $this->parseUrl($url, $parameters);

        $this->crumbs[] = new CrumbsItem($url, $title, $this->url, $this->config);

        return $this;
    }