Merge pull request #42 from dappnode/eduadiez-test

Added a new badge with the number of downloads

README.md

 # DAppNode
+
 [![Website dappnode.io](https://img.shields.io/badge/Website-dappnode.io-brightgreen.svg)](https://dappnode.io/)
 [![Documentation Wiki](https://img.shields.io/badge/Documentation-Wiki-brightgreen.svg)](https://github.com/dappnode/DAppNode/wiki)
 [![GIVETH Campaign](https://img.shields.io/badge/GIVETH-Campaign-1e083c.svg)](https://alpha.giveth.io/campaigns/OcKJryNwjeidMXi9)
 [![RIOT DAppNode](https://img.shields.io/badge/RIOT-DAppNode-blue.svg)](https://riot.im/app/#/room/#DAppNode:matrix.org)
+![GitHub All Releases](https://img.shields.io/github/downloads/dappnode/DAppNode/total.svg)
 [![Twitter Follow](https://img.shields.io/twitter/follow/espadrine.svg?style=social&label=Follow)](https://twitter.com/DAppNODE?lang=es)
 
 [![](https://github.com/dappnode/DAppNode/raw/master/doc/DAppNodeLogoWide.png)](https://github.com/dappnode/DAppNode/wiki/DAppNode-Installation-Guide)