remove submodule and pipeline update

.gitlab-ci.yml

@@ -3,7 +3,6 @@ image: python:latest
 before_script:
   - time apt update
   - time pip install -r requirements.txt
-  - time cd mkdocs-ivory && python setup.py install && cd ..
 
 pages:
   stage: deploy
@@ -14,4 +13,10 @@ pages:
       - public
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+      changes:
+        - "docs/**/*"
+        - "mkdocs.yml"
+
+
+