fixes __repr__ of RuleCPD
fixes __repr__ of RuleCPD

abinashpanda/pgmpy,anaviltripathi/pgmpy,sandeepkrjha/pgmpy,liquidmetal/pgmpy,palashahuja/pgmpy,ankurankan/pgmpy,kris-singh/pgmpy,vivek425ster/pgmpy,khalibartan/pgmpy,kris-singh/pgmpy,anaviltripathi/pgmpy,jhonatanoliveira/pgmpy,yashu-seth/pgmpy,pgmpy/pgmpy,pratyakshs/pgmpy,liquidmetal/pgmpy,palashahuja/pgmpy,sandeepkrjha/pgmpy,abinashpanda/pgmpy,vivek425ster/pgmpy,ankurankan/pgmpy,jhonatanoliveira/pgmpy,khalibartan/pgmpy,pgmpy/pgmpy,pratyakshs/pgmpy,yashu-seth/pgmpy