Mkdocs-htmlproofer-plugin

* 9b1cead - Allow square brackets in headings as anchor except image links (31)

* b7c3134 - Add `enabled` and `validate_rendered_template` flags for performance (30)
* e92829c - Add validate_external_urls config option (28)
* 27dc598 - Fix relative path resolution (29)
* ce913ef - Improve performance (27)

Especially thanks to garrettheel for the nice improvements 🌹

* 2d29f63 - Fix issue with use_directory_urls = True configuration (26)
* 36c36b0 - Add an issue template (25)

* c63267a - Validate anchor links across pages (22)
* a9a42ac - Use HTTPS for 404 test URL (21)
* d3ed2f5 - Raise PluginError on error (23)

Especially thanks to johnthagen for all the nice pull requests 🥇

* 6757903 - Refactor plugin to use newer Python 3 features (20)
* 4b014a1 - Ignore HTTPS localhost URLs (19)
* 11724a3 - Add support for Python 3.8-3.9 (16)
* a729f6c - Add GitHub Actions CI badge (15)
* 21aede1 - Fix 14, Add CI and fix style

* c637c44 - Fix 13, check anchor tags
* 7c48cf0 - Add test