Re-enable venue creation (for admins)

[btaitelb]

When I try to create a new venue on /venues, I get a 404 error and the following error in the logs

ActionController::RoutingError (No route matches [POST] "/venues"):

[btaitelb]

Ah, the following note in config/routes.rb explains it. Editing the title of this issue based on that.

  #resources :venues
  # NOTE I just discovered that any user could destroy venues, so have
  # disabled creating, deleting, and updating venues through the website
  # until we lock this down properly
  resources :venues, only: [:index, :show, :edit, :new]