diff --git a/docs/index.md b/docs/index.md
index 9b45a3aa0cb94b08a3ded7e2dc11ad2ec7f129e8..62049be0fe22a5f1722a9d2514580b4526678d74 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -7,6 +7,23 @@
 * `mkdocs build` - Build the documentation site.
 * `mkdocs help` - Print this help message.
 
+## Setting files hierarchy
+    inside mkdocs.yml use the key nav: to configure the md files hierarchy
+
+    nav:
+        - Home: index.md
+        - Architecture Guide:
+            - Admin-gui: architecture/admin-gui.md
+            - Admin-tools: architecture/admin-tools.md
+            - Api-gateway: architecture/api-gateway.md
+            - CMS: architecture/cms.md
+            - Monitoring: architecture/monitoring.md
+            - Web-app: architecture/web-app.md
+            - Service:
+                - authentification: architecture/service/autentification.md
+                - Elasticsearch:
+                    - Indexer: architecture/service/elasticsearch/indexer.md
+
 ## Project layout
 
     mkdocs.yml    # The main file and configuration file.
diff --git a/mkdocs.yml b/mkdocs.yml
index 919dff8357fa7d049bca630b245819f2b5c6e1d7..378eda7c0340b54d13e03fda5937ecf7e5fb0d2e 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -1,3 +1,24 @@
-site_name: portail data functional documentation
+site_name: Portail Data Functional Documentation
+site_description: Portail Data Project Documentation with Markdown.
+site_author: MkDocs Team
+
 theme:
   name: 'material'
+
+nav:
+    - Home: index.md
+    - Architecture Guide:
+        - Admin-gui: architecture/admin-gui.md
+        - Admin-tools: architecture/admin-tools.md
+        - Api-gateway: architecture/api-gateway.md
+        - CMS: architecture/cms.md
+        - Monitoring: architecture/monitoring.md
+        - Web-app: architecture/web-app.md
+        - Service:
+            - authentification: architecture/service/autentification.md
+            - Elasticsearch:
+                - Indexer: architecture/service/elasticsearch/indexer.md
+    - About:
+        - Gitflow: miscellaneous/gitflow-ci-cd.md
+        - VSCode: miscellaneous/vscode-settings.md
+        - Webapp: miscellaneous/webapp-auth.md