Dear All,

I propose to move the section "Checkboxes".
From "5 TODO Items -> 5.6 Checkboxes"
To: "2 Document Structure -> 2.6 Plain Lists -> 2.6.1 Checkboxes"

Because checkbox can only exist in a plain list, as a plain list feature.  
So the section should be under 'Plain Lists' heading not under 'TODO Items'.

Link https://orgmode.org/org.html#Checkboxes would stay the same.
So it's just a move section to a more suitable place.
Without changing the content.

What do you think?
Patch in the attachment.

Regards,
Sławomir Grochowski