GFM False positives for: Link fragments should be valid

[jayvdb]

The following TOC items in my README.md are failing

- [Establishing the relationship between an openapi spec and its corresponding clients/services/adapters/models in CI](#establishing-the-relationship-between-an-openapi-spec-and-its-corresponding-clientsservicesadaptersmodels-in-ci)
- [The Earthly "build-image" commands](#the-earthly-build-image-commands)
- [Which versions get deployed?](#which-versions-get-deployed)
- [Printing help for the ./kindctl script](#printing-help-for-the-kindctl-script)

When the .md is rendered on GitHub, these links work correctly.
Also, this TOC is generated by a VSCode extension yzhang.markdown-all-in-one.

Now it is true that other renders may fail to link these correctly.

IMO there are two ways to avoid people seeing these errors unnecessarily.

1. Have a setting for markdown flavour, so that each project can select whether they want Github Flavor Markdown, CommonMark, or other flavour
2. Allow disabling lints, in this case https://github.com/DavidAnson/markdownlint/blob/v0.32.1/doc/md051.md , and ideally support inline config like https://github.com/DavidAnson/markdownlint/tree/v0.32.1?tab=readme-ov-file#configuration