Feat: Add support for filtering titles defined in the front matter

[chrisgrieser]

That's a cool idea, but i'd rather not add this, since it introduces a (minor) breaking change for most users, while only benefitting a really, really small number of users.

Feel free to keep this as a fork, and please do not be discouraged from making PRs in general to this workflow in general. 🙂

[Konfido]

Not at all. Thanks for making such a wonderful workflow.