change from ariaCurrent to aria-current (#6599)
change from ariaCurrent to aria-current (#6599)

Based on this line of code, we need either update the code or the doc.
https://github.com/ReactTraining/react-router/blob/4dc6e16b447191aedcac557a81ac26c307a0d9c7/packages/react-router-dom/modules/NavLink.js#L15
rackt/react-router,ReactTraining/react-router,reactjs/react-router,ReactTraining/react-router,ReactTraining/react-router,rackt/react-router,reactjs/react-router,ReactTraining/react-router