comark/annotate/needs-side · Give an annotation with at or to a side

at moves a side note along its margin, and to aims its arrow. Without a side there's no note in the margin and no arrow, so neither has anything to place.

Incorrect

::screenshot{src="/pond.png" alt="The pond map with three ducks"}
:::annotation{x=20 y=30 w=15 h=10 mark="circle" at=60 to="27,35"}
The duck without a name tag.
:::
::

lint-comark example.mdexample.md:1:19 comark/annotate/needs-sidescreenshot "/pond.png", annotation 1: at places a side note and its arrow, so it needs a side.Add side="top", "bottom", "left", or "right".✖ 1 problem

Correct

::screenshot{src="/pond.png" alt="The pond map with three ducks"}
:::annotation{x=20 y=30 w=15 h=10 mark="none" side="top" at=60 to="27,35"}
The duck without a name tag.
:::
::

lint-comark example.md✔ No problems