feat: added .gitlab-ci.yml file

.gitlab-ci.yml

@@ -0,0 +1,23 @@
+image: node:alpine
+
+cache:
+  paths:
+    - node_modules/
+    - .yarn
+
+before_script:  
+  - apt-get update -qq && apt-get install
+
+# stages order. 
+stages:
+ - build
+
+Build:
+  stage: build
+  tags:
+    - node
+  before_script: 
+    - yarn config set cache-folder .yarn
+    - yarn install
+  script:
+    - yarn eleventy