protected function renderContent(array $replacements)
    {
        return $this->getContentReplacer()->replace($this->content, array_merge([
            'app_name' => config('app.name'),
            'app_url'  => link_to(config('app.url'), config('app.name')),
            'mobile'   => html()->tel(config('cms.company.mobile')),
            'phone'    => html()->tel(config('cms.company.phone')),
            'email'    => html()->mailto(config('cms.company.email')),
        ], $replacements));
    }