feat(eslint-config-react-app): Add jest & testing-library rules#8963

ianschmitz merged 1 commit intofacebook:masterfacebook/create-react-app:masterfrom

MichaelDeBoey:jest-dom-and-testing-library-rulesMichaelDeBoey/create-react-app:jest-dom-and-testing-library-rulesCopy head branch name to clipboard