Polyfills in FloatingHelper tests' docs (#2818)
Polyfills in FloatingHelper tests' docs (#2818)

* Polyfills in FloatingHelper tests' docs

* Update README.TESTKIT.md

* Update README.TESTKIT.md

wix/wix-style-react,wix/wix-style-react,wix/wix-style-react,wix/wix-style-react