Update README & added TestGrid (#53)

README.md

@@ -151,6 +151,7 @@ Inspired by the [awesome](https://github.com/sindresorhus/awesome) list thing.
 - [Sauce Labs](https://saucelabs.com) - Cross browser testing made awesome. Selenium testing, mobile testing, JS unit testing on 300+ OS/browser platforms. Get started for free.
 - [HeadSpin](https://www.headspin.io/) - Test your website for cross browser compatibility on thousands of real device running real browsers. Get instant access to multiple desktop and mobile browsers on the cloud. Get Free Trial.
 - [Browserstack](https://www.browserstack.com/) - Test your website for cross browser compatibility on real browsers. Instant access to multiple desktop and mobile browsers. Get Free Trial.
+- [TestGrid](https://www.testgrid.io/) - End to End testing of mobile apps & websites on 1000+ real browsers & OS. Request Free Trial.
 - [LambdaTest](https://www.lambdatest.com/selenium-automation) - Test your website for cross browser compatibility on 2000+ real browsers & OS. Get Free Trial.
 - [TestingBot](https://testingbot.com) - TestingBot provides easy cross browser testing with Selenium in the cloud.
 - [Moon Cloud](https://aerokube.com/moon-cloud/) - Your dedicated Selenium cluster in public cloud platform with per-minute billing and unlimited number of browsers.
@@ -181,4 +182,4 @@ Inspired by the [awesome](https://github.com/sindresorhus/awesome) list thing.
 
 [![CC0](https://licensebuttons.net/p/zero/1.0/88x31.png)](http://creativecommons.org/publicdomain/zero/1.0/)
 
-To the extent possible under law, [Christian Bromann](http://www.christian-bromann.com/) has waived all copyright and related or neighboring rights to this work.
+To the extent possible under law, [Christian Bromann](http://www.christian-bromann.com/) has waived all copyright and related or neighboring rights to this work.