Meteor packet d3

So, I went on to the instructions in question. How to build a Meteor package and create it for the d3 visualization library using this code.

Package.describe({
 summary: "Make cool visualizations with d3"
});

Package.on_use(function (api) {
  api.use('d3', 'client');
  api.add_files('d3.v2.js', 'client');
});

I ran a meteor script from my github checkout (where I added this package). Then I created a new meteorite app, but I still don’t see d3 turning on ... Did I skip a step?