Based on Davide's ideas, but with a few tweaks:
I really like the dive number on the far right; that gives a clean
consistent look. I tried it with date on the left and depth/duration in
the middle and liked the result.
This doesn't change the font, just addresses the layout and bold heading
vs smaller sub-heading.
See #427
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>