demo: Restructure storytelling-chatbot directory, update README steps, link to vercel demo

examples/storytelling-chatbot/client/app/page.tsx

@@ -0,0 +1,16 @@
+"use client";
+
+import React from "react";
+import { DailyProvider, useCallObject } from "@daily-co/daily-react";
+
+import App from "../components/App";
+
+export default function Home() {
+  const callObject = useCallObject({});
+
+  return (
+    <DailyProvider callObject={callObject}>
+      <App />
+    </DailyProvider>
+  );
+}