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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
meh, looks like there is an issue forking that kumite.
Here is a basic example of how you could output Angular within the output window. http://www.codewars.com/kumite/56d7779373b8348def00023b
Keep in mind that the tests are ran before the angular code is rendered, but their output is rendered after it.
Also there is a bug which doesn't allow for the HTML code to be presented properly. You will have to fork the kumite in order to see the code properly.
Though I am no authority, I believe your description and your solution are good. =)