Readme function name

[AriVagelatos-KSO]

Hi, In the readme files import a function called getToken:

import { getToken } from './auth'; but it seems the function is named auth0Login:

export default auth0Login({

[jbreckmckye]

The default export in that JS example is the return value of auth0Login(...), which contains the method getToken, as it is an instance of library.