Add whiteboards.
Add whiteboards.

tiyd-rails-2015-08/tiyd-rails-2015-08.github.io,dbernheisel/tiyd-rails-2015-08.github.io,dbernheisel/tiyd-rails-2015-08.github.io,dbernheisel/tiyd-rails-2015-08.github.io,tiyd-rails-2015-08/tiyd-rails-2015-08.github.io,tiyd-rails-2015-08/tiyd-rails-2015-08.github.io