Manage mailchimp with google sheets data.
Update mailchimp settings with the latest data from your google sheets.
Note: This currently depends on an interactive OAuth2 authentication flow (pasting a link into your browser to authorize the google api calls).
cp .env.sample .env
Edit .env to include appropriate api keys and google sheet id's etc.
See sheet2csv.rb for a trivial example of fetching data from google. It's only 6 lines long currently!