Add book ES6 in Practice

ericdouglas · web-flow · commit a558bf59aada · 2016-12-28T19:48:53.000-02:00
diff --git a/README.md b/README.md
@@ -76,6 +76,7 @@ Just send a pull request or open an [issue](https://github.com/ericdouglas/ES6-L
 1. [Exploring ES6](https://leanpub.com/exploring-es6)
 1. [ECMAScript 6 Succinctly](https://www.syncfusion.com/resources/techportal/details/ebooks/ECMAScript_6_Succinctly)
 1. [Let's Learn ES6](https://letslearnes6.com/)
+1. [ES6 in Practice](https://leanpub.com/es6-in-practice)
 
 ## Built with ES6
 
