update Mobile Accessibility at W3C (wai/mobile)

[shawna-slh]

Resource URL

https://www.w3.org/WAI/standards-guidelines/mobile/

Description

update with more info on existing documentation and ongoing work

• [ ] work with Jan Jaap de Groot to draft suggestions
• [ ] assign Shawn for review, editing, publishing

@iadawn do you want to be assigned to this or only Roy?

Resource Shortname

wai-mobile