Add Vibe Coding UI Specification

[horizonx-so]

Summary

Adds one free, MIT-licensed resource to Documentation & Templates → Project Configuration:

• a reusable YAML UI contract for coding agents;
• design tokens, component and page states, and responsive rules;
• WCAG 2.2 AA and reduced-motion checks;
• production gates and a 16-point review scorecard.

The resource is publicly accessible without registration or payment and is intended for spec-driven, AI-assisted interface work.

Type of Change

• New tool/resource
• Update existing entry
• Fix broken link
• Improve documentation
• Other (please describe)

Checklist

• I have read the CONTRIBUTING guidelines
• Tool/resource follows the awesome list format
• Links are working and tested
• Entry includes: Tool name, Pricing, Best For, Why It's Awesome — not applicable to this documentation/specification table
• No promotional/marketing language (focus on utility)
• Alphabetical order maintained (if applicable)

Additional Context

Repository code, pull requests, issues, and the current README were checked for an existing HorizonX entry; none was found. This change adds one line to one file.

Disclosure: I founded HorizonX, whose commercial product is a paid UI and code library. The linked specification itself is free and MIT-licensed; it contains a brief disclosed maintainer attribution to HorizonX. AI assisted with preparing this contribution. Please evaluate it independently. No sponsorship, payment, reciprocity, guaranteed placement, or preferred anchor text is requested.

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Note

Low Risk
Documentation-only change adding one README table row with an external resource link; no code or runtime impact.

Overview
Adds Vibe Coding UI Specification to the Project Configuration table under Documentation & Templates.

The new entry links a reusable UI contract for coding agents covering design tokens, component/page states, responsive rules, WCAG 2.2 AA, reduced motion, production gates, and a 16-point review scorecard.

^{Reviewed by Cursor Bugbot for commit 2af6cff. Bugbot is set up for automated code reviews on this repo. Configure here.}