binance/binance-spot-api-docs — reverse-engineered prompt

Build me a clean official looking documentation site for the Binance Spot APIs and streams using the markdown docs in this repo as the source of truth.

I want it to feel easy to browse for someone trying to understand Spot REST, WebSocket API, market data streams, user data streams, FIX, SBE, errors, enums, filters, FAQs, changelog, testnet, and demo mode. Please keep both English and Chinese docs available, with a simple language switch when matching pages exist. Add a left side navigation, full text search, table of contents on long pages, copy buttons for code or payload examples, and clear links out to the related Binance developer docs and useful resources already mentioned in the README.

Please preserve the content accurately and do not invent unsupported endpoints or behavior. If anything is unclear, prefer the markdown files in this repo. Make the site responsive, fast, and easy to maintain from the existing docs files. If you need details on current docs site patterns, you can look up modern documentation site examples online.