diff --git a/_Sidebar.md b/_Sidebar.md
index 41b8442..c1b52f7 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -1,9 +1,13 @@
- *   [Home](Home)
- *   [contributor to wiki guidelines](contributor_to_wiki_guidelines)
+[Home](Home)
  *   [XML-elements](elements_XML)
-     *  [uuid](elements_child_uuid)
-     *  [names](elements_child_names)
-     *  [informations](elements_child_informations)
-     *  [description](elements_child_description)
-     *  [kindInformations](elements_child_kindInformations)
-     *  [elementInformations](elements_child_elementInformations) 
+     *  [attribute](elements_definition_attribute)
+     *  child elements
+         *  [uuid](elements_child_uuid)
+         *  [names](elements_child_names)
+            *  [name](elements_child_name)
+         *  [informations](elements_child_informations)
+         *  [description](elements_child_description)
+         *  [kindInformations](elements_child_kindInformations)
+         *  [elementInformations](elements_child_elementInformations) 
+ *   [XML-diagram](diagram_XML)
+ *   [contributor to wiki guidelines](contributor_to_wiki_guidelines)