reflect renaming Interface.read_dofs in the script

RR-2-patch-test.py

@@ -344,7 +344,7 @@ interface[0].write_dofs(from_function = f1test, #
                         phase = 'wetting',
                         subdomain_ind = 1)
 
-interface[0].read_dofs(to_function = f2test, #
+interface[0].read_pressure_dofs(to_function = f2test, #
                         interface_dofs = dofs_on_interface2,#
                         dof_to_vert_map = dom2_d2v,#
                         local_to_parent_vertex_map = dom2_parent_vertex_indices,#