Update renderer class

• add tabbed content
• styling without left navigation
• hamburger menu in top navigation must be be given explicitly

docs/30_Page/10_Page_layout.md

@@ -34,6 +34,17 @@ Variable           | Description
 {{PAGE_FOOTER_RIGHT}} | page: footer on the left |
 {{PAGE_FOOTER_LEFT}}  | page: footer on the right |
 
+
+#### No left sidebar
+
+This shows the left sidebar:
+`'{{PAGE_LAYOUT}}'  =>'layout-navbar-fixed layout-fixed sidebar-mini',`
+
+This hides the left sidebar:
+`'{{PAGE_LAYOUT}}'  =>'layout-top-nav sidebar-collapse',`
+
+If you don't have any left sidebar then additionally remove the hampurger menu from the top menu.
+
 ## Initial example
 
 ### Init Renderer class