comark/details/empty-collapsible · Put content in every ::collapsible

A ::collapsible hides its content behind "Show properties". With nothing inside, opening it shows nothing.

Incorrect

::collapsible{name="deploy options"}
::

lint-comark example.mdexample.md:1:1 comark/details/empty-collapsible::collapsible 1 is empty.Put the content it hides inside it, or remove it.✖ 1 problem

Correct

::collapsible{name="deploy options"}
- `region`: where the pigeons fly from.
- `retries`: how many times a deploy tries again.
::

lint-comark example.md✔ No problems