Update .gitlab-ci.yml

.gitlab-ci.yml

-build-job:
-  stage: build
-  script:
-    - echo "Hello, $GITLAB_USER_LOGIN!"
-  tags:
-    - docker
+image: alpine
 
-
-test-job1:
-  stage: test
+pages:
   script:
-    - echo "This job tests something"
+  - apk update && apk add doxygen graphviz ttf-freefont
+  - doxygen docs/doxygen.conf
+  - mv docs/html/ public/
+  artifacts:
+    paths:
+    - public
+  only:
+    - master
   tags:
     - docker
-
-test-job2:
-  stage: test
-  script:
-    - echo "This job tests something, but takes more time than test-job1."
-    - echo "After the echo commands complete, it runs the sleep command for 20 seconds"
-    - echo "which simulates a test that runs 20 seconds longer than test-job1"
-    - sleep 20
-  tags:
-    - docker
-
-deploy-prod:
-  stage: deploy
-  script:
-    - echo "This job deploys something from the $CI_COMMIT_BRANCH branch."
-  tags:
-    - docker
\ No newline at end of file