hotfix file links in the nav menu

mkdocs.yml

@@ -17,12 +17,12 @@ nav:
         - CMS: architecture/cms.md
         - Monitoring: architecture/monitoring.md
         - Web-app: architecture/web-app.md
-        - Service:
-            - authentification: architecture/service/authentication.md
-            - organizations: architecture/service/organizations.md
-            - resources: architecture/service/resources.md
+        - Services:
+            - authentification: architecture/services/authentication.md
+            - organizations: architecture/services/organizations.md
+            - resources: architecture/services/resources.md
             - Elasticsearch:
-                - Indexer: architecture/service/elasticsearch/indexer.md
+                - Indexer: architecture/services/elasticsearch/indexer.md
     - About:
         - Gitflow: miscellaneous/gitflow-ci-cd.md
         - VSCode: miscellaneous/vscode-settings.md