As a relict of the REPL output, several `<br>` tags where introduced,
where they are not needed or even permitted. This led to some spacing
issues (sometimes the docstring was closer to the next term than to the
one above that it actually described).
To counter the removed forced newlines, some extra margin is added below
each declaration.
As a side-effect, this also makes the W3 "Nu Html Checker" happy.
