I had a brief look at just implementing this for a PR, but it looks like your MD templates have yaml in them that gets preprocessed?
Anyway, rather than publishing your fingerprint and relying on keyservers to both be up, work and have your key, it'd be much better to either include your full ascii enarmoured key on the page, or a link to it on another https endpoint on the same domain.
Thanks for having a responsible disclosure policy in the first place.