Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -24,7 +24,12 @@ test:
 deploy:
  stage: deploy
  script:
+   - mv public /tmp && mv build public
    - npm install -g serve
    - serve -s build
+artifacts:
+  paths:
+    - public/
+ 
 
   
\ No newline at end of file