Add ringpop-go from Uber

"Scalable, fault-tolerant application-layer sharding for Go applications"

README.md

@@ -363,6 +363,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
 * [NATS](https://github.com/nats-io/gnatsd) - A lightweight, high performance messaging system for microservices, IoT, and cloud native systems.
 * [raft](https://github.com/hashicorp/raft) - Golang implementation of the Raft consensus protocol, by HashiCorp.
 * [raft](https://github.com/coreos/etcd/tree/master/raft#readme) - Go implementation of the Raft consensus protocol, by CoreOS.
+* [ringpop-go](https://github.com/uber/ringpop-go) - Scalable, fault-tolerant application-layer sharding for Go applications
 * [rpcx](https://github.com/smallnest/rpcx) - A distributed pluggable RPC service framework like alibaba Dubbo.
 * [sleuth](https://github.com/ursiform/sleuth) - A library for master-less p2p auto-discovery and RPC between HTTP services (using [ZeroMQ](https://github.com/zeromq/libzmq)).
 * [tendermint](https://github.com/tendermint/tendermint) - High-performance middleware for transforming a state machine written in any programming language into a Byzantine Fault Tolerant replicated state machine using the Tendermint consensus and blockchain protocols.