Render checklists

[dtolnay]

I would expect the following markdown to turn into a checklist, as it does on GitHub.

• A
• B

- [ ] A
- [ ] B

Instead it turns into:

---

I use a checklist in https://serde.rs/derive.html from which it may be possible to port over the style.

[budziq]

Hi,

Checklists are outside of the commonmark spec. There is a request to add these as an extension in pulldown-cmark but it has zero traction so far.

[ehuss]

Task lists are now supported in pulldown-cmark. This is blocked on #898.

[plul]

#898 was merged. This can be closed.

[ehuss]

Thanks!