Call for review: Add low-level fails to AAA rules

Hey folks,

This pull requests adds a few examples to our AAA rules that show failing a
lower level success criterion also fails the AAA criterion:

This review ends Thursday January 26th. If you have any comments please
leave a review on the pull request:
https://github.com/act-rules/act-rules.github.io/pull/2010

-- 
*Wilco Fiers*
Axe-core & Axe-linter product owner - WCAG 3 Project Manager - Facilitator
ACT Task Force