message: chore: update basic example
diff: const withCSS = require("@zeit/next-css");
  -module.exports = withCSS({
  +
  +const config = {
  + target: "serverless",
  assetPrefix: "https://s3.amazonaws.com/BUCKET_NAME"
  -});
  +};
  +
  +if (process.env.NODE_ENV === "development") {
  + delete config.assetPrefix;
  +}
  +
  +module.exports = withCSS(config);
  