To-do lists work a bit differently; they're just Markdown tasks:

    - [ ] do something
    - [x] did something

However, there are a number of neat plugins which can integrate those into anything from simple views of all open to-do items to full-up Kanban boards. Additionally, the Minimal theme lets you do Bullet Journal-style variations on that:

    - [/] partially did something
    - [<] scheduled something
    - [>] punted something to the next day/etc.