minor changes in docstring
minor changes in docstring

anaviltripathi/pgmpy,sandeepkrjha/pgmpy,sandeepkrjha/pgmpy,abinashpanda/pgmpy,abinashpanda/pgmpy,jhonatanoliveira/pgmpy,pgmpy/pgmpy,anaviltripathi/pgmpy,kris-singh/pgmpy,jhonatanoliveira/pgmpy,khalibartan/pgmpy,liquidmetal/pgmpy,pgmpy/pgmpy,ankurankan/pgmpy,khalibartan/pgmpy,kris-singh/pgmpy,liquidmetal/pgmpy,ankurankan/pgmpy