add edit button

docs/stylesheets/extra.css

 .center {
-    display: block;
-    margin: auto;
-    margin-bottom: 5%;
-    margin-top: -5%;
+  display: block;
+  margin: auto;
+  margin-bottom: 5%;
+  margin-top: -5%;
 }
 
 .inline-center-left {
-    float: right;
+  float: right;
 }
-
-.md-typeset h1,
-.md-content__button {
-  display: none;
-}
\ No newline at end of file

mkdocs.yml

 site_name: Self-Data Grandlyon - Technical Docs
 site_description: A Collection of Technical Documentations Related to the Self-Data Grandlyon Projects.
 site_author: Métropole de Lyon
-repo_name: "Clone the Project"
+repo_name: "Forge link"
 repo_url: "https://forge.grandlyon.com/web-et-numerique/llle_project/self-data-technical-doc"
+edit_uri: "https://forge.grandlyon.com/web-et-numerique/llle_project/self-data-technical-doc/-/blob/master/docs/"
 
 theme:
   name: "material"
@@ -19,6 +20,8 @@ theme:
     - navigation.tabs
     - navigation.top
     - navigation.instant
+  icon:
+    edit: material/file-edit-outline
 
 markdown_extensions:
   - pymdownx.inlinehilite