Replace .csv in web-scraper scripts

[KarenJewell]

Is your feature request related to a problem? Please describe.
Currently, the webscraper scripts (/web-scrapers) output to .csvs which is then ingested into merge_data.py. This should be converted to .json output to keep consistent with the rest of the project.

Describe the solution you'd like

• Change the output of /web-scrapers to be .json files
• Update merge_data.py to ingest the new .json files
• format code with Black before PR
• update docs (architecture.md and datapipeline.png)

Describe alternatives you've considered
None

Additional context
Original ticket triggering this change is #163