Comment updated

skins/PolarWindPlot/skin.conf

@@ -11,6 +11,7 @@
     [[Groups]]
 
         # group_speed sets the display units for the windrose plots
+        # But this doesn't work as weewx.conf overrides this file...
         group_speed = knot   # Options are 'mile_per_hour',
                                     # 'km_per_hour', 'knot', or
                                     # 'meter_per_second'