Create line break using iPad: How?

I noticed that one of the content contributors on our site was having trouble getting a simple line break (i.e., without starting a new paragraph which would, in effect, add an undesirable blank line). I told her to use Shift-Enter, which does the trick on my Ubuntu desktop (running Chrome). But she told me that she uses an iPad and Shift-Enter doesn’t work. I’ve done some searching and see that many people run into this problem with the iPad (especially on FaceBook). So, how does one get just a line break when editing content via an iPad?