added github event to events page
added github event to events page

utdmakerspace/utdmakerspace.github.io,utdmakerspace/utdmakerspace.github.io,rahulsonwalkar/utdmakerspace.github.io,utdmakerspace/utdmakerspace.github.io,rahulsonwalkar/utdmakerspace.github.io,rahulsonwalkar/utdmakerspace.github.io