Initial version

src/index.tsx

@@ -0,0 +1,21 @@
+import * as React from 'react';
+import * as ReactDOM from 'react-dom';
+import {ChartView} from './chart_view';
+import {HashRouter as Router, Route, Switch} from 'react-router-dom';
+import {Intro} from './intro';
+import {TopBar} from './top_bar';
+import 'semantic-ui-css/semantic.min.css';
+import './index.css';
+
+ReactDOM.render(
+  <Router>
+    <div className="root">
+      <Route path="/" component={TopBar} />
+      <Switch>
+        <Route exact path="/" component={Intro} />
+        <Route exact path="/view" component={ChartView} />
+      </Switch>
+    </div>
+  </Router>,
+  document.querySelector('#root'),
+);