Accessibility Quick Start Guide in draft: needs vetting

The WordPress Accessibility Handbook now has a draft of a Quick Start Guide. The doc needs edits, comments, and vetting.

We intend this as a resource for developers to quickly grab WordPress-oriented code examples and a11y guidelines. Let’s make sure everything is accurate and clearly explained, and that nothing a11y-critical for WP dev is missing. (This process might also help us identify which topics need further explanations in other Handbook sections.)

Please review the draft and leave your comments on this post.