Python: add comment for plot_range and plot_list to example call to fdsplotlib.dataplot

Author: rmcdermo

Utilities/Python/FDS_verification_script.py

@@ -26,7 +26,7 @@
                     pltdir='../../Manuals/',
                     close_figs=True,
                     verbose=True,
-                    plot_range=[2])
+                    plot_range=[2,2]) # plot_range[start, end], optionally instead use plot_list['Dataname']
 
 # Special cases