update Makefile
update Makefile

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