index.js settings route

//...
import Settings from './components/Settings';

import { Router, Route, IndexRoute, hashHistory } from 'react-router';

// wrap app with store provider, router provider
ReactDOM.render(
  <Provider store={store}>
    <Router history={hashHistory}>
      <Route path="/" component={App}>
        <IndexRoute component={Home} />
        <Route path="login" component={Login} />
        <Route path="register" component={Register} />
        <Route path="settings" component={Settings} />
// ...