Added the files.

client/src/App.js

@@ -0,0 +1,13 @@
+import React, { Component } from 'react'
+import App from 'base-shell/lib'
+import MUIConfig from 'material-ui-shell/lib'
+import merge from 'base-shell/lib/utils/config'
+import _config from './config'
+
+const config = merge(MUIConfig, _config)
+
+export default class Demo extends Component {
+  render() {
+    return <App config={config} />
+  }
+}