add rpcx - a rpc library

README.md

@@ -1184,6 +1184,8 @@ See also [Are we game yet?](http://arewegameyet.com)
   * [erickt/rust-zmq](https://github.com/erickt/rust-zmq) — [ZeroMQ](http://zeromq.org/) bindings [<img src="https://api.travis-ci.org/erickt/rust-zmq.svg?branch=master">](https://travis-ci.org/erickt/rust-zmq)
 * CoAP
   * [Covertness/coap-rs](https://github.com/Covertness/coap-rs) — A [Constrained Application Protocol(CoAP)](https://tools.ietf.org/html/rfc7252) library for Rust. [<img src="https://api.travis-ci.org/Covertness/coap-rs.svg?branch=master">](https://travis-ci.org/Covertness/coap-rs)
+* RPC
+  * [smallnest/rpcx-rs](https://github.com/smallnest/rpcx-rs) — A RPC library for Rust for developing microservices in easy and simple way. [<img src="https://api.travis-ci.org/smallnest/rpcx-rs.svg?branch=master">](https://travis-ci.org/smallnest/rpcx-rs)
 
 ### Parsing