We (https://commando.io) use ReadMe for our API documentation. Beautiful docs, created easily. Can't wait for automatic client lib generation and what the future holds for ReadMe. Here are our docs http://docs.commando.io to view what is possible.
Yes ReadMe hosts. Absolutely agree, they need to implement full page caching, since the pages are basically static, and should not be rendered on each page load. This would be easily done with nginx, memcached, or redis.
