1) Added Main Menu items description
2) Added Divelogs.de description
3) Removed paragraph defining EAD & END
4) Several typos corrected
5) Positions of several figures standardised to align="central"
Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>