How to use the html mode? Can't even insert a <br> . . .

Is there any documentation about how html mode is supposed to work?
The rendering looks fine, but I can't do much editing, other than 
entering text.

I can't insert any html commands - because qemacs escape the "<" and so on.
I needed a <br>, and pressing enter/return is the obvious choice.
But this only inserts a space.  Well, I have the spacebar for that . . .

Is html-mode unfinished, or is there a way to enter more than just text?

Helge Hafting