Changes:

Adds accessibility tags (accTitle and accDescr) to the mermaid class diagram in the WebGL architecture documentation.

In response to discussion in processing/p5.js-website#168 (comment): Mermaid.js supports embedding accessibility metadata directly into generated SVG diagrams. This improves the experience for users with screen readers and other assistive technologies by providing a concise title and detailed description of the diagram's structure.

Reference: Mermaid.js Accessibility Documentation

Screenshots of the change:

PR Checklist

• npm run lint passes
• Inline reference is included / updated
• Unit tests are included / updated