Merge branch 'main' of git-ce.rwth-aachen.de:mbd/psimpy into main

.gitlab-ci.yml

+# This file is a template, and might need editing before it works on your project.
+# To contribute improvements to CI/CD templates, please follow the Development guide at:
+# https://docs.gitlab.com/ee/development/cicd/templates.html
+# This specific template is located at:
+# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Pages/HTML.gitlab-ci.yml
+
+# Full project: https://gitlab.com/pages/plain-html
+pages:
+  stage: deploy
+  image: python:3.9-slim
+  script:
+    - mkdir .public
+    - cp -r docs/source/_build/html/ .public
+    - rm -rf public
+    - mv .public public
+  artifacts:
+    paths:
+      - public
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH