Update react-router-dom to the latest version 🚀#7

greenkeeper[bot] wants to merge 2 commits intomasterthe-road-to-react-with-firebase/react-semantic-ui-firebase-authentication:masterfrom

greenkeeper/react-router-dom-5.0.0the-road-to-react-with-firebase/react-semantic-ui-firebase-authentication:greenkeeper/react-router-dom-5.0.0Copy head branch name to clipboard