Update README.md

README.md

@@ -1437,5 +1437,5 @@ This library is distributed under the BSD-style license found in the [LICENSE](h
 
 ### Sponsors
 
-## <a href="https://www.browserstack.com/?ref=webhook"><img src="http://www.hajdarevic.net/browserstack.svg" alt="BrowserStack" width="250"/></a>
+## <a href="https://www.browserstack.com/?ref=gods"><img src="http://www.hajdarevic.net/browserstack.svg" alt="BrowserStack" width="250"/></a>
 [BrowserStack](https://www.browserstack.com/?ref=webhook) is a cloud-based cross-browser testing tool that enables developers to test their websites across various browsers on different operating systems and mobile devices, without requiring users to install virtual machines, devices or emulators.