Add sponsor info

demo/images/browserstack.svg

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readme.md

@@ -283,6 +283,12 @@ activeElement.getNode();  // Gets the DOM Element behind this element
 
 Feel free to submit pull requests, create issues or spread the word
 
+## Sponsored By
+
+Thanks to [BrowserStack](https://browserstack.com) for sponsoring the compatibility testing needs
+
+[![BrowserStack](./demo/assets/browserstack.svg)](https://www.browserstack.com)
+
 ## License
 
 MIT © [Kamran Ahmed](https://twitter.com/kamranahmedse)