creates a marker for known rendering bots from search engines like Google, Bing, Baidu, Yandex or services like Lighthouse, Ahrefs and others that identify in the user agent string
- updated bot list 2023-08 (2 new user agents + 3 new variants)
- updated bot list 2023-07 (3 new user agents).
- updated bot list 2022-08 (1 new variant).
- added new bots
- Initial release.