swiftlang/swift-evolution ? reverse-engineered prompt

Build me a clean website for the Swift Evolution project that lets people browse Swift language proposals, release notes, visions, and the proposal process in one place. It should feel like a simple documentation site, with a clear homepage, easy navigation, and pages for the main sections in this repo. Make it easy to read on mobile and desktop, and make sure the proposal content is organized so someone can quickly find what changed in each Swift release.

I want the site to use the markdown content here as the source of truth, and to handle the common pages nicely, including the proposal templates and contribution guidelines. Add good searching or filtering if it makes sense, and make the layout feel polished and official, not cluttered. If you need current best practices or docs for any part of the setup, look them up online.