chore(readme): remove Greenkeeper badge

Author: greenkeeper[bot]

README.md

@@ -3,7 +3,7 @@
 [![Website](https://img.shields.io/website-up-down-green-red/http/suddi.github.io.svg)](https://suddi.github.io)
 [![CircleCI](https://img.shields.io/circleci/project/github/suddi/suddi.github.io/master.svg)](https://circleci.com/gh/suddi/suddi.github.io)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/69d83996bf574c919ae2d0ce800bb78e)](https://www.codacy.com/app/suddir/suddi-github-io?utm_source=github.com&utm_medium=referral&utm_content=suddi/suddi.github.io&utm_campaign=Badge_Grade)
-[![Greenkeeper badge](https://badges.greenkeeper.io/suddi/suddi.github.io.svg)](https://greenkeeper.io/)
+
 [![David](https://img.shields.io/david/suddi/suddi.github.io.svg)](https://david-dm.org/suddi/suddi.github.io)
 [![David](https://img.shields.io/david/dev/suddi/suddi.github.io.svg)](https://david-dm.org/suddi/suddi.github.io?type=dev)
 [![StackShare](https://img.shields.io/badge/tech-stack-0690fa.svg?style=flat)](https://stackshare.io/suddi/suddi-github-io)