readme clarification (fix #202)
readme clarification (fix #202)

zhangzuoqiang/commafeed,ebraminio/commafeed,ahmadassaf/CommaFeed-RSS-Reader,Athou/commafeed,zhangzuoqiang/commafeed,syshk/commafeed,ebraminio/commafeed,wesley1001/commafeed,RavenB/commafeed,zhangzuoqiang/commafeed,Athou/commafeed,Hubcapp/commafeed,ebraminio/commafeed,RavenB/commafeed,Hubcapp/commafeed,wesley1001/commafeed,ebraminio/commafeed,Athou/commafeed,wesley1001/commafeed,Hubcapp/commafeed,syshk/commafeed,ahmadassaf/CommaFeed-RSS-Reader,RavenB/commafeed,ahmadassaf/CommaFeed-RSS-Reader,Hubcapp/commafeed,RavenB/commafeed,Athou/commafeed,syshk/commafeed,syshk/commafeed,ahmadassaf/CommaFeed-RSS-Reader,zhangzuoqiang/commafeed,wesley1001/commafeed