Add qmuntal/stateless (#2744)

README.md

@@ -1144,6 +1144,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [sandid](https://github.com/aofei/sandid) - Every grain of sand on earth has its own ID.
 * [shellwords](https://github.com/Wing924/shellwords) - A Golang library to manipulate strings according to the word parsing rules of the UNIX Bourne shell.
 * [shortid](https://github.com/teris-io/shortid) - Distributed generation of super short, unique, non-sequential, URL friendly IDs.
+* [stateless](https://github.com/qmuntal/stateless) - A fluent library for creating state machines.
 * [stats](https://github.com/go-playground/stats) - Monitors Go MemStats + System stats such as Memory, Swap and CPU and sends via UDP anywhere you want for logging etc...
 * [turtle](https://github.com/hackebrot/turtle) - Emojis for Go.
 * [url-shortener](https://github.com/pantrif/url-shortener) - A modern, powerful, and robust URL shortener microservice with mysql support.