Add preview

src/index.js

@@ -1,8 +1,12 @@
 'use strict';
 
+import React from 'react'
+import Preview from './preview'
+
 export const fn = ({ term, display }) => {
   display({
     title: `Weather in ${term}`,
     subtitle: 'Cloudy with a chance of meatballs',
+    getPreview: () => <Preview city={term} />
   })
 }

src/preview.js

@@ -0,0 +1,17 @@
+import React, { Component, PropTypes } from 'react'
+
+export default class Preview extends Component {
+  render() {
+    const { city } = this.props
+
+    return (
+      <div>
+        {city == 'london' ? 'Endless Rain' : 'Look Outside'}
+      </div>
+    )
+  }
+}
+
+Preview.propTypes = {
+  city: PropTypes.string.isRequired,
+}