What is the proper way to include highlightjs's CSS while using ember-remarkable?

I have installed the ember-remarkable addon in Ember 2.7. I am able to use the md-text component to format text content. The content adds the appropriate <code> markup for fenced code blocks such as:

```javascript
    // An empty function
    function test() {
    }
```

However, the CSS to highlight that code as Javascript is not being included in my app. I am currently styling my app in app/styles/app.scss using the ember-cli-sass addon.

One way to include the CSS would be to add a <link> to app/index.html to a CDN such as:

<link rel="stylesheet" type="text/css" href="http://ift.tt/2bgXEIa">

Is that the best way? Or is there an "Ember" way to easily include the styles that are in the bower_components/highlightjs directory?