Update Readme.md

Date: June 1st, 8PM.
Host: @DiscoverAero
Description: Scavenger hunt using iBeacons and CoreBluetooth around WWDC 2014. Open to all at no cost and with no registration requirement.
Map: Union Square and South of Market areas
URL: http://discoveraero.com/adventure
Update Readme.md

Added party information to doc
moved to appropriate date
Merge pull request #14 from Rowdyrobot/patch-1

Patch 1