Added readme

readme.md

@@ -0,0 +1,14 @@
+# OKAPI
+
+This repository contains the protobuf specification and accompanying go module for the [OKAPI](https://docs.decozo.org/okapi/docs) standard.
+Read the [OKAPI](https://docs.decozo.org/okapi/docs) specification for more information.
+
+# Compile protobufs into go package on macos
+
+Compiling the protobuf files yourself is not necessary but here are instructions as how one should compile it if needed (MacOs). 
+
+```
+$ brew install protoc protoc-gen-go protoc-gen-go-grpc
+$ cd protobuf
+$ protoc --go_out=.. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative okapi-errors.proto okapi-onboarding.proto okapi-service-config.proto okapi-events.proto okapi-patient-registration.proto okapi.proto
+```