Update data/events/2019-stockholm.yml
Update data/events/2019-stockholm.yml

Co-Authored-By: Daniel Maher <71272cbeafa4ceb9790d3a90855f148b93b22d29@gmail.com>
gomex/devopsdays-web,gomex/devopsdays-web,gomex/devopsdays-web,gomex/devopsdays-web