Is your feature request related to a problem? Please describe.

We should remove all the references to Create React App. CRA is deprecated and no longer recommended in React docs.

Currently we have a reference to CRA here: https://testing-library.com/docs/react-testing-library/intro/

Describe the solution you'd like

Remove reference to CRA from here: https://testing-library.com/docs/react-testing-library/intro/