Add Web Accessibility frameworks and testing tools

[shibley]

Adds two new sections to this awesome compliance list:

Frameworks & Standards: Web Accessibility

• ADA Title II — US state/local government websites (April 2026 deadline)
• ADA Title III — US public accommodations
• EAA / EN 301 549 — European Accessibility Act (June 2025 deadline)
• Section 508 — US federal ICT requirements
• WCAG 2.1 & 2.2 — W3C Web Content Accessibility Guidelines

Tools & Software: Web Accessibility Testing

• axe-core (open source) — Deque's accessibility engine
• Pa11y (open source) — CLI testing tool
• RatedWithAI — AI-powered WCAG 2.2 scanner
• WAVE — WebAIM's evaluation tool

Web accessibility compliance is a fast-growing area of GRC — with ADA Title II's April 2026 deadline affecting 90,000+ state and local government entities, and the European Accessibility Act taking effect June 2025, these frameworks belong alongside the security, privacy, and financial compliance standards already in the list.

[shibley]

Hi @getprobo team — just following up on this PR. It adds Web Accessibility frameworks (WCAG 2.0/2.1/2.2, Section 508, ADA Title III) and practical testing tools for compliance teams. Accessibility is becoming a major compliance requirement, especially with recent DOJ settlements. Would love your review! 🙏

[shibley]

Quick follow-up — API Status Check helps compliance teams by providing real-time third-party vendor availability monitoring (useful for SOC 2, ISO 27001 vendor management). Happy to adjust!