Correct the Descriptions and Example of *parallel=num (Copy Operators)*
Correct the Descriptions and Example of *parallel=num (Copy Operators)*

mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion,mashengchen/incubator-trafodion