Docker, update readme, update dependencies

client/src/index.js

@@ -3,14 +3,8 @@ import ReactDOM from 'react-dom';
 
 import store from './store';
 import history from './history';
-import * as serviceWorker from './service-worker';
 import Root from './components/Root';
 
 import './i18n';
 
 ReactDOM.render(React.createElement(Root, { store, history }), document.getElementById('root'));
-
-// If you want your app to work offline and load faster, you can change
-// unregister() to register() below. Note this comes with some pitfalls.
-// Learn more about service workers: http://bit.ly/CRA-PWA
-serviceWorker.register();