Fix asciidoc CSS path

Both JS and CSS resources need to be embedded into HTML

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Manual update

Replaced graphics for Import from Divelogs.de to reflect latest UI schanges.

Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>