Adding godoc and license badges to README (#218)

README.md

@@ -4,6 +4,8 @@
 [![slack](https://img.shields.io/badge/slack-argoproj-brightgreen.svg?logo=slack)](https://argoproj.github.io/community/join-slack)
 [![Build Status](https://travis-ci.org/argoproj/argo-events.svg?branch=master)](https://travis-ci.org/argoproj/argo-events)
 [![Coverage Status](https://coveralls.io/repos/github/argoproj/argo-events/badge.svg)](https://coveralls.io/github/argoproj/argo-events)
+[![GoDoc](https://godoc.org/github.com/argoproj/argo-events?status.svg)](https://godoc.org/github.com/argoproj/argo-events/pkg/apis)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE)
 
 <p align="center">
   <img src="https://github.com/argoproj/argo-events/blob/master/docs/assets/argo-events-logo.png?raw=true" alt="Logo"/>