...

.flake8

 [flake8]
 max-line-length = 100
-ignore = E501
+ignore = E501, W605
 select = C,E,F,W,B,B9

.gitlab-ci.yml

@@ -27,8 +27,7 @@ pages:
   script:
     - pip install sphinx sphinx_rtd_theme sphinxcontrib-bibtex
     - cd doc
-    - make html
-    - mv build/html ../public/
+    - sphinx-build -b html source ../public/
     - echo 'Done'
   artifacts:
     paths: