getdp: more on doc

beyn.py

@@ -11,9 +11,10 @@ def simple(operator, origin, radius,
     origin -- the origin (in the complex plane) of the above circular contour
     radius -- the radius of the circular contour used to search the eigenvalues
     nodes -- the number of nodes for the trapezoidal integration rule (optional)
+    maxIt -- the maximal number of iteration for constructing A0 (optional)
     lStart -- the number of columns used for A0 when algorithm starts (optional)
     lStep -- the step used for increasing the number of columns of A0 (optional)
-    rankTol -- the tolerance for the rank test
+    rankTol -- the tolerance for the rank test (optional)
     verbose -- should I be verbose? (optional)
 
     Returns the computed eigenvalues