Components goes here, you can generate with generate-react-cli, examples;
$ npx generate-react-cli component UserButton
$ npx generate-react-cli component Rectangle --type=d3class
$ npx generate-react-cli component Rectangle --type=d3
$ npx generate-react-cli component Login --type=recoil
$ npx generate-react-cli component MyButton --type=materialui
$ npx generate-react-cli component MyWidget --type=widget