It works! the lines before and after the <br /> appear in the same translation unit.
I have added a section to Typographical_Guidelines. Please check that the instruction is clear and amend if necessary.
I think it is very clear. I added two sections on keeping units together and on balancing brackets. Do they belong there?
Might they be better in Edit Markup? While we want to avoid duplicating sections (maintenance, etc.), a link between Typographical_Guidelines and EditMarkup would be sensible. Can I leave you to deal with this? Thanks