Support checkboxes syntax from GitHub Flavoured Markdown

[donya]

- [ ] 123
  - [ ] foo
  - [x] bar
- [ ] ~~456~~

could be rendered as:

Why not TODO/DONE:

1. It’s not widely supported Markdown syntax (i.e. might be less convenient to work with external editors)
2. It doesn’t allow to conveniently cancel tasks (you still can do TODO ~~foo~~, but since DONE is crossed as well that’s confusing)
3. It only makes sense for tasks, while checkboxes can have different meaning

[starryveshch]

@donya

It doesn’t allow to conveniently cancel tasks

There is canceled keyword.

@donya

It only makes sense for tasks, while checkboxes can have different meaning

For now, you can insert org-mode check boxes as Logseq supports it.

The above example might not be consistent with markdown syntax, so you can try using plain lists starting with +.

- Today tasks,
  + [ ] foo
  + [ ] bar

[donya]

There is canceled keyword

Oh, I didn’t realize that, thanks

For now, you can insert org-mode check boxes as Logseq supports it

I see, then my request should be rephrased to extend checkbox syntax to allow treating a regular block as a checkbox, i.e. - [ ] foo that is treated as a separate block rather than + [ ] foo that is a line in a single multi-line block.