Update .gitlab-ci.yml

.gitlab-ci.yml

 image: python:3.7-alpine
 
-test:
-  stage: test
-  script:
-  - pip install -U sphinx
-  - sphinx-build -b html . public
-  only:
-  - branches
-  except:
-  - master
-
 pages:
   stage: deploy
   script:
-  - pip install -U sphinx
-  - sphinx-build -b html . public
+  - cp -r Documentation/html public
   artifacts:
     paths:
     - public