Create (read, update, and destroy) should be a methods within an event class, so I removed create_event_controller and its views with rails destroy controller create_event

added event_controller and its view with rails generate controller Events
Added resources: events to routes and commented out #get "create_event/index", so as to use the CRUD operation on events.
Added rails generate controller welcome index for index page
Destroy doesn't work well and we get error for update function in events_controller
Validation for additional info not working