iterate() missing in terminal steps documentation

Someone just asked on Stack Overflow about the iterate() step:
https://stackoverflow.com/questions/47403296/iterate-step-is-used-in-the-end-of-the-command-when-creating-nodes-and-edges-t

I pointed him to the section terminal steps of the reference docs as that describes the other terminal steps like next() and toList(), but noticed that iterate() is currently missing there.