Changes to the heatmap image in the user manual as well as some small changes
to sync the text with the new image.
Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
1) Replace the existing graphics for explaining the heat map.
2) Update the text for explaining the heat map.
These changes with substantial input from Rick Walsh.
Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>