Added go-sundheit - a service health checks lib to distributed systems section
@@ -563,6 +563,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [go-health](https://github.com/InVisionApp/go-health) - Library for enabling asynchronous dependency health checks in your service.
* [go-jump](https://github.com/dgryski/go-jump) - Port of Google's "Jump" Consistent Hash function.
* [go-kit](https://github.com/go-kit/kit) - Microservice toolkit with support for service discovery, load balancing, pluggable transports, request tracking, etc.
+* [go-sundheit](https://github.com/AppsFlyer/go-sundheit) - A library built to provide support for defining async service health checks for golang services.
* [gorpc](https://github.com/valyala/gorpc) - Simple, fast and scalable RPC library for high load.
* [grpc-go](https://github.com/grpc/grpc-go) - The Go language implementation of gRPC. HTTP/2 based RPC.
* [hprose](https://github.com/hprose/hprose-golang) - Very newbility RPC Library, support 25+ languages now.
