Run crawler from html files

[adilsoncarvalho]

Find a way to run the crawler from the command line using a previously saved file. In this case we can run only the parse_product_detail as we're interested just to get the data from the detailed page.

I found on the Scrapy documentation a mention to this command but when I did a quick and dirty try it didn't worked out.

scrapy parse \
  --spider=pr-nfce --verbose \
  --callback=parse_products_detail \
  ./detailed_page.html