[examples/default,#560]: stub nextjs app using tailwind.

examples/default/pages/api/hello.js

@@ -0,0 +1,5 @@
+// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
+
+export default function helloAPI(req, res) {
+  res.status(200).json({ name: 'John Doe' })
+}