"Now I'm sure you're ready to tackle this challenge after getting a taste of development in the Swift Playground..."
This and several other places make it sound like there's supposed to be an exercise before this that teaches folks to use the Playground, just want to check if that's true and it's just not up yet. If not and there won't be one, I think it's confusing and makes it seem like the student has missed some step.
"Now I'm sure you're ready to tackle this challenge after getting a taste of development in the Swift Playground..."
This and several other places make it sound like there's supposed to be an exercise before this that teaches folks to use the Playground, just want to check if that's true and it's just not up yet. If not and there won't be one, I think it's confusing and makes it seem like the student has missed some step.