create-react-app is great but even a basic app needs more than a component renderer. Simple boilerplate to fill the gaps.
create-react-app +
redux - https://redux.js.org/docs/introduction/
react-router-dom - https://reacttraining.com/react-router/core/
saga - https://redux-saga.js.org/docs/introduction/
Redux-Logger - https://github.com/evgenyrodionov/redux-logger
This project was bootstrapped with Create React App.