Create CI configuration

.gitlab-ci.yml

+image: node:latest
+
+# allow caching for faster deployment
+cache:
+  paths:
+    - node_modules/
+    - public/
+    - .cache/
+
+pages:
+  tags:   
+    - public-docker
+  stage: deploy
+  script:
+    - yarn install
+    - yarn build:gitlab
+  artifacts:
+      paths:
+        - public
+  only:
+    - main
+

package.json

@@ -6,6 +6,7 @@
     "docusaurus": "docusaurus",
     "start": "docusaurus start",
     "build": "docusaurus build",
+    "build:gitlab": "docusaurus build --out-dir public",
     "swizzle": "docusaurus swizzle",
     "deploy": "docusaurus deploy",
     "clear": "docusaurus clear",