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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.
Great job!
Just a couple of things, style-wise, that I can see: the return statement isn't required (it'll still output the string), and you can use single quotes for the string as well. The only time you really need double-quotes is if you need to do string interpolation or if there's going to be apostrophes and/or single-quotes in your string.
Probably should say "return" instead of "print" in the description.