Error correction

I think there is an error on line 7.

While following the tutorial, i had to replace the line:

    {{#each todo in todos itemController="todo"}}
by

    {{#each todo in model itemController="todo"}}

in order to unbreak the app.
    {{#each todo in this

works fine but is inconsistent with the [earlier stage of the tutorial](http://emberjs.com/guides/getting-started/displaying-model-data/) where it is taught to use the **model** keyword.