Test cases

[andrewguenthner]

We need people who can go to murals where the artist is not identified, click the link, make sure the instructions make sense, follow the instructions, and then see if the scraper works properly. This one requires no coding, just patience, because the scraper will take about 10 minutes to do its job each time. You do not have to run the scraper, though, you can just tag the artist on a few murals and we'll check it next time the scraper runs.