added preview

Author: prasanna1211

docs/client/components/PlaygroundPage/PlaygroundWithPreview/Preview.js

@@ -0,0 +1,14 @@
+import React from 'react';
+
+import styles from './styles.scss';
+
+const Preview = ({ code }) => (
+  <div className={styles.preview}>
+    <div className="header">
+      Preview
+    </div>
+    {code}
+  </div>
+);
+
+export default Preview;