Add new file

.gitlab-ci.yml

+# This file is a template, and might need editing before it works on your project.
+# Template project: https://gitlab.com/pages/jekyll
+# Docs: https://docs.gitlab.com/ee/pages/
+image: ruby:2.6
+
+variables:
+  JEKYLL_ENV: production
+  LC_ALL: C.UTF-8
+
+before_script:
+  - gem install bundler
+  - bundle install
+
+test:
+  stage: test
+  script:
+    - bundle exec jekyll build -d test
+  artifacts:
+    paths:
+      - test
+  except:
+    - master
+
+pages:
+  stage: deploy
+  script:
+    - bundle exec jekyll build -d public
+  artifacts:
+    paths:
+      - public
+  only:
+    - master