index.js

import React from 'react'
import ReactDOM from 'react-dom'
import Spd from './containers/Spd'
import {
  BrowserRouter as Router,
  Route,
  Link
} from 'react-router-dom'

import RegionalDesign from './components/RegionalDesign'

ReactDOM.render(
  <Router handler={Spd} history={Router}>
    <Route path="/" component={Spd}>
      <Route path="/regional_design/:id" component={RegionalDesign} />
    </Route>
  </Router>,
  document.getElementById('root')
);