Get lists of NYT Articles based on shares, emails, and views.
curl \
# append ?api-key=$API_KEY to the URL \
http://api.nytimes.com/svc/mostpopular/v2/mostshared/{section}/{time-period}.jsoncurl \
# append ?api-key=$API_KEY to the URL \
http://api.nytimes.com/svc/mostpopular/v2/mostviewed/{section}/{time-period}.jsoncurl \
# append ?api-key=$API_KEY to the URL \
http://api.nytimes.com/svc/mostpopular/v2/mostemailed/{section}/{time-period}.json