fixed verify documentation
fixed verify documentation

RBigData/pbdDEMO,RBigData/pbdDEMO,snoweye/pbdDEMO,RBigData/pbdDEMO,snoweye/pbdDEMO,wrathematics/pbdDEMO,wrathematics/pbdDEMO,wrathematics/pbdDEMO,snoweye/pbdDEMO