docs(readme): add Greenkeeper badge

greenkeeper[bot] · greenkeeper[bot] · commit 6f0dd195088d · 2018-11-06T19:02:34.000Z
diff --git a/README.MD b/README.MD
@@ -9,6 +9,9 @@
 `easygraphql-now` is a node library used to create servers with mocks of the schema you pass. 
 
 ## Installation
+
+[![Greenkeeper badge](https://badges.greenkeeper.io/EasyGraphQL/easygraphql-now.svg)](https://greenkeeper.io/)
+
 ```bash
 $ npm install -g easygraphql-now
 ```
