Begin implementing new website

www/src/pages/404.js

@@ -0,0 +1,9 @@
+import React from 'react';
+
+const NotFoundPage = () =>
+    <div>
+        <h1>NOT FOUND</h1>
+        <p>You just hit a route that doesn&#39;t exist... the sadness.</p>
+    </div>;
+
+export default NotFoundPage;