support for IO_uring

Hi, in the Readme you say
> Use a non-blocking I/O network lib based on epoll (kqueue under macOS/FreeBSD) to provide high-concurrency, high-performance network IO

IO_uring is the new linux API that allow greater performance for async IO, I was wondering wether you could use IO_uring for even more performance?
https://github.com/axboe/liburing

feel free to close this issue, and BTW congrats for the amazing performance!