update docstring

src/toolbox_scs/detectors/azimuthal_integrator.py

@@ -23,7 +23,7 @@ class AzimuthalIntegrator(object):
             start and stop polar angle (in degrees) to restrict integration to 
             wedges
         
-        dr : int, default 2
+        dr : int, optional
             radial width of the integration slices. Takes non-square DSSC 
             pixels into account.
         
@@ -147,8 +147,12 @@ class AzimuthalIntegratorDSSC(AzimuthalIntegrator):
             start and stop polar angle (in degrees) to restrict integration to 
             wedges
         
-        nrings : int, default 100
-            number of rings to integrate over
+        dr : int, optional
+            radial width of the integration slices. Takes non-square DSSC 
+            pixels into account.
+        
+        nrings : int, optional
+            Number of integration rings. Can be given as an alternative to dr
         
         dxdy : tuple of floats, default (0, 0)
             global coordinate shift to adjust center outside of geom object (meter)