add gitlab pages config

.gitlab-ci.yml

@@ -0,0 +1,22 @@
+image: node:latest
+
+before_script:
+  - npm i minify -g
+
+pages:
+  stage: deploy
+
+  script:
+  - rm public -Rf
+  - mkdir -p public
+  - minify code.js > public/code.js
+  - minify functions.js > public/functions.js
+  - minify index.html > public/index.html
+  - minify style.css > public/style.css
+
+  artifacts:
+    paths:
+    - public
+
+  only:
+  - master