Add note on dive computers using the same import engine

Lots of dive computers are just variations on a theme, or sometimes even
just rebadged copies of each others with different manufacturer and
model names.  The import dialog may not mention your exact dive computer
by name, but that doesn't necessarily mean that you cannot import data
from it.

Make that clearer in the README, and list the rough list of dive
computers supported by libdivecomputer.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

README

@@ -41,11 +41,78 @@ just do
 and select "Import" from the File menu, tell it what dive computer you
 have (and where it is connected if you need to), and hit "OK".
 
-There's a lot of duplicates in the XML files that come as an example,
-and subsurface will de-duplicate the ones that are exactly the same
-(just because they were imported multiple times).  But at least two of
-the dives have duplicates that were edited by Dirk in the Suunto Dive
-Manager, so they don't trigger the "exact duplicates" match.
+NOTE! There are often multiple models of dive computers that import
+exactly the same way.  If you have a Suunto Gekko, for example, the
+import function works fine - even if you don't find the Gekko listed
+explicitly.  It has the same import engine as the older Suunto Vyper
+(not "Vyper Air").
+
+So check the (incomplete?) list of supported dive computers below, and
+see which ones show up together.  If you have the "Aeris Elite T3", for
+example, you'd notice that it's in the same group with the "Oceanic Atom
+2", and use that choice to import.
+
+Suunto:
+
+ * Solution
+
+ * Eon, Solution Alpha and Solution Nitrox/Vario
+
+ * Vyper, Cobra, Vytec, Vytec DS, D3, Spyder, Gekko, Mosquito, Stinger and Zoop
+
+ * Vyper2, Cobra2, Cobra3, Vyper Air and HelO2
+
+ * D9, D6 and D4
+
+Uwatec:
+
+ * Aladin
+
+ * Memomouse
+
+ * Smart and Galileo (infrared)
+
+Reefnet:
+
+ * Sensus
+
+ * Sensus Pro
+
+ * Sensus Ultra
+
+Oceanic, Aeris, Sherwood, Hollis, Genesis and Tusa (Pelagic):
+
+ * VT Pro, Versa Pro, Pro Plus 2, Wisdom, Atmos 2, Atmos AI, Atmos
+Elite, ...
+
+ * Veo 250, Veo 180Nx, XR2, React Pro, DG02, Insight, ...
+
+ * Atom 2.0, VT3, Datamask, Geo, Geo 2.0, Veo 2.0, Veo 3.0, Pro Plus 2.1,
+Compumask, Elite T3, Epic, Manta, IQ-900 (Zen), IQ-950 (Zen Air),
+IQ-750 (Element II), ...
+
+Mares:
+
+ * Nemo, Nemo Excel, Nemo Apneist, ...
+
+ * Puck, Puck Air, Nemo Air, Nemo Wide, ...
+
+ * Icon HD
+
+Heinrichs Weikamp:
+
+ * OSTC, OSTC Mk.2 and OSTC 2N
+
+Cressi, Zeagle and Mares (Seiko):
+
+ * Edy, Nemo Sport
+
+ * N2iTiON3
+
+Atomic Aquatics:
+
+ * Cobalt
+
 
 Implementation details: