https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify
https://facebook.github.io/create-react-app/docs/advanced-configuration
https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app
https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size
https://facebook.github.io/create-react-app/docs/code-splitting