Anchor tag showing as raw markdown in glossary post

[dreeves]

### Desiderata
- [ ] Fix a regex I'm guessing?
- [ ] Discuss if this has to be done with regexes; seems fragile!

Replicata

This markdown:

#### Weaselproofing (sometimes *weasel-proofing*) {#weaselproof}

Expectata

Shouldn't show the {#weaselproof}.

Resultata

Cognata

• https://blog.beeminder.com/glossary/#w

• 457

Verbata: anchor links, markdown processing,