Disclosure - Accessibility section

[carmacleod]

In the Accessibility section for Disclosure, it only talks about how to activate the trigger button.
https://v11.carbondesignsystem.com/patterns/disclosures-pattern/#accessibility

Where does Carbon usually put guidance for developers when ARIA is needed to make something understandable for screen readers? For example, a Disclosure needs to have aria-expanded="true"/"false" on the button, and optionally aria-controls pointing to the popover.

Also, I would expect to see advice around using Carbon icon button tooltips to give a label to the icon button and add aria-labelledby so that the icon button has a text label for screen readers to read.

[jnm2377]

@carmacleod thanks for opening this. You're right, we should include the a11y information. We'll have a dev work on adding this to the docs. :)