Add license and Go Report Card badges to README (#93)

README.md

diff --git a/README.md b/README.md
index 9d54a84..b511f39 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,10 @@
 [v0.4.0](https://github.com/toml-lang/toml/blob/master/versions/en/toml-v0.4.0.md)
 
 [![GoDoc](https://godoc.org/github.com/pelletier/go-toml?status.svg)](http://godoc.org/github.com/pelletier/go-toml)
+[![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/goadesign/goa/blob/master/LICENSE)
 [![Build Status](https://travis-ci.org/pelletier/go-toml.svg?branch=master)](https://travis-ci.org/pelletier/go-toml)
 [![Coverage Status](https://coveralls.io/repos/github/pelletier/go-toml/badge.svg?branch=master)](https://coveralls.io/github/pelletier/go-toml?branch=master)
+[![Go Report Card](https://goreportcard.com/badge/github.com/pelletier/go-toml)](https://goreportcard.com/report/github.com/pelletier/go-toml)
 
 ## Features