Add download graph badge

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Author: timoxley

Readme.md

@@ -5,7 +5,11 @@
 
 #### No libraries required (i.e. no underscore), just ES5.
 
-<a href="https://nodei.co/npm/functional-javascript-workshop/" ><img src="https://nodei.co/npm/functional-javascript-workshop.png?downloads=true&stars=true"></a>
+<a href="https://nodei.co/npm/functional-javascript-workshop/" ><img src="https://nodei.co/npm/functional-javascript-workshop.png?downloads=true&stars=true"><br />
+<img src="https://nodei.co/npm-dl/functional-javascript-workshop.png?months=6">
+</a>
+
+
 
 [![Gittip](http://img.shields.io/gittip/timoxley.png)](https://www.gittip.com/Shields.io/)
 ## Mission