Add some comments to help #175.
Add some comments to help #175.

wikimedia/operations-debs-python-pykafka,thedrow/samsa,tempbottle/pykafka,yungchin/pykafka,thedrow/samsa,sammerry/pykafka,yungchin/pykafka,appsoma/pykafka,thedrow/samsa,fortime/pykafka,benauthor/pykafka,sammerry/pykafka,appsoma/pykafka,benauthor/pykafka,vortec/pykafka,aeroevan/pykafka,sontek/pykafka,wikimedia/operations-debs-python-pykafka,vortec/pykafka,wikimedia/operations-debs-python-pykafka,jofusa/pykafka,sontek/pykafka,benauthor/pykafka,aeroevan/pykafka,jofusa/pykafka,fortime/pykafka,tempbottle/pykafka