QtIFW

Doc: fixed a broken table

Each row in a table must have the same amount of
\li commands, or the table formatting breaks.
Use line breaks and empty lines if you want to
add several text paragraphs to a table cell.

Change-Id: I7a19bc883c0de18c247ca6c550dd37dba64c89d5
Reviewed-by: Kai Koehne <kai.koehne@digia.com>