User Profile

Hello, I'm trying to learn iOS using the official tutorials. I was trying to read the Editining Reminders chapter, but I think it's incomplete. First of all it says that the estimated time to read it is 30 min, but I was able to read it in 5 min. Second, it has only 1 section "Adding working reminder". After I read this section, it was clear to me that there should be more information because we just added the workingReminder variable, but I can't see the code where we would update workingReminder after pressing "Done" or anything like that. What is wrong with the tutorial? Is it possible to report this to Apple?