[3] Add requirements.txt. (A little overreaching.)
[3] Scrape the first page of SF county results and save to a CSV.
[3] Expand to include first page of every county.
[3] Improve handling of business names that include commas.
[3] Clean up comments.
[3] Notes a known limitation (first page only).
[3] Refactor to scrape all results for each county. (h/t @drewrwilson)
[3] Update requirements.txt.