Update .gitlab-ci.yml

  script:

  - docker build -t tutorial -f dockerfiles/Dockerfile .

  - mkdir public

  - docker run -v `pwd`/public:/app/site tutorial bash

  - docker run -v `pwd`/public:/app/site tutorial Rscript -e "sandpaper::build_lesson()"

  - cp $CALVERA_DOCS_SSH_KEY key && chmod 600 key

  - cat key

  - rsync -avz -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i key" public/ cloud@10.64.195.250:/home/cloud/nova-tutorial/tutorial

  - rsync -avz -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i key" public/docs cloud@10.64.195.250:/home/cloud/nova-tutorial/tutorial

  artifacts:

    paths:

      - public