React chapter has invalid configuration

[shepmaster]

This snippet:

const common = {
  ...
  plugins: {
    new HtmlWebpackPlugin({
      template: HtmlWebpackTemplate,
      title: 'Demo app'
      appMountId: 'app', // Generate #app where to mount
      mobile: true, // Scale page on mobile
      inject: false, // html-webpack-template requires this to work
    }),
  },
};

A comma is missing after title and the plugins hash is missing a key corresponding to the value for HtmlWebpackPlugin.

[shepmaster]

... and the plugins hash

It should probably be an array, actually.