Add info default arguments for simulate function

wrappers/Python/doc/mod_roadrunner/cls_RoadRunner.rst

@@ -362,7 +362,7 @@ All simulation related tasks can be accomplished with the single ``simulate`` me
 
    1: With no arguments. In this case, the current set of options from the previous 
       ``simulate`` call will be used. If this is the first time ``simulate`` is called, 
-      then a default set of values is used. 
+      then a default set of values is used. The default set of values are (start = 0, end = 5, points = 51).
 
    2: With up to four positions arguments, described above.