Merge pull request #3 from the-road-to-graphql/greenkeeper/initial

Add Greenkeeper badge 🌴

Author: rwieruch

README.md

@@ -1,6 +1,6 @@
 # react-graphql-github-vanilla
 
-[![Build Status](https://travis-ci.org/the-road-to-graphql/react-graphql-github-vanilla.svg?branch=master)](https://travis-ci.org/the-road-to-graphql/react-graphql-github-vanilla) [![Slack](https://slack-the-road-to-learn-react.wieruch.com/badge.svg)](https://slack-the-road-to-learn-react.wieruch.com/)
+[![Build Status](https://travis-ci.org/the-road-to-graphql/react-graphql-github-vanilla.svg?branch=master)](https://travis-ci.org/the-road-to-graphql/react-graphql-github-vanilla) [![Slack](https://slack-the-road-to-learn-react.wieruch.com/badge.svg)](https://slack-the-road-to-learn-react.wieruch.com/) [![Greenkeeper badge](https://badges.greenkeeper.io/the-road-to-graphql/react-graphql-github-vanilla.svg)](https://greenkeeper.io/)
 
 A simple React application consuming the GitHub GraphQL API with plain HTTP requests. [Read more about it over here](https://www.robinwieruch.de/react-with-graphql-tutorial).