adds docs for stateNameDecorator
adds docs for stateNameDecorator

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