Stocktwits_Streaming demo has a typo

[lzh0430]

Hi, I think you had a typo in below demo code:
downloader = Stocktwits_Streaming(config) downloader.download_date_range_stock(stock, pages)
"download_date_range_stock" should be "download_streaming_stock" instead. As "download_date_range_stock" is not implemented in Stocktwits_Streaming.