Update .gitlab-ci.yml

.gitlab-ci.yml

-# This file is a template, and might need editing before it works on your project.
-# Full project: https://gitlab.com/pages/plain-html
-pages:
-  stage: deploy
-  script:
+image: debian:8
+
+test:
+  script: echo "Hello world"
\ No newline at end of file
-  - mkdir .public
-  - cp -r * .public
-  - mv .public public
-  artifacts:
-    paths:
-    - public
-  only:
-  - master