[Topic] Design checks for web accessibility

[rianrietveld]

URL: https://wpaccessibility.org/docs/testing/design/
Code: https://github.com/wpaccessibility/wp-a11y-docs/blob/main/docs/testing/design/index.md

Please read How to contribute before you start.

Tasks

This content should be reviewed and restructured.
The links need to be checked and updated.