Adds TestButler library

Aritra Roy · Aritra Roy · commit 92b3aa9c0e3d · 2018-07-20T20:41:36.000+05:30
diff --git a/README.md b/README.md
@@ -88,6 +88,7 @@ These are some of the best and the most popular libraries and utilities to boost
 * [Rebound](https://github.com/facebook/rebound) - A Java library that models spring dynamics and adds real world physics to your app
 * [RichPath](https://github.com/tarek360/RichPath) - 💪 Rich Android Path. 🤡 Draw as you want. 🎉 Animate much as you can
 * [Spruce](https://github.com/willowtreeapps/spruce-android) - Spruce Animation Library
+* [TestButler](https://github.com/linkedin/test-butler) -  Reliable Android Testing, at your service
 * [ViewAnimator](https://github.com/florent37/ViewAnimator) - A fluent Android animation library
 
 
