* refactor(v2): move `reportMessage` from `core/src/server/utils` to `utils` package
* feat(v2): handle broken markdown links by using onBrokenLinks prop from siteconfig
* feat(v2): add a new site config prop called `onBrokenMarkdownLinks`
works like onBrokenLinks, but only for markdown links
* feat(v2): add `onBrokenMarkdownLinks` to API docs
* some changes regarding test issues after adding `onBrokenMarkdownLink`
* Update website/versioned_docs/version-2.0.0-alpha.66/api/docusaurus.config.js.md
Co-authored-by: Sébastien Lorber <slorber@users.noreply.github.com>