Add more info to spreadsheet

[danfowler]

spreadsheet: https://docs.google.com/spreadsheets/d/1cV43fuzwy2q2ZKDWrHVS6XR4O8B01eLevh4PD6nCENE/edit#gid=98436325

To support #95 and #101 in the context of the event detail mockup by @smth, we need to add more information to the spreadsheet. Is it a form people fill out?

Potential fields:

• slug (e.g. "newyork" so #event=newyork can show the New York event modal; maybe we can autogenerate from Location)
• address (for more fine grained location info)
• time
• description