Minor changes

Author: pabel-rh

modules/customizing-the-appearance/proc-customize-rhdh-sidebar-menuitems.adoc

@@ -11,8 +11,7 @@ Main menu items:: The core navigation structure of sidebar is static.
 ----
 dynamicsPlugins:
   frontend:
-    _<package_name>_:
-
+    default.main-menu-items:
         menuItems:
           default.home:
             title: Home
@@ -97,7 +96,7 @@ dynamicPlugins:
 <1> `my-plugin`: Matches `path` in `dynamicRoutes`
 <2> `priority`: Controls order of plugins under the parent menu item.
 <3> `parent`: Nests this plugin under the `favorites` parent menu item.
-<4> `favourites`: Configuration for the parent menu item.
+<4> `favorites`: Configuration for the parent menu item.
 <5> `icon`: Displays the `favorite` icon from the {product-very-short} system icons.
 <6> `title`: Displays the title name for the parent menu item.
 <7> `priority`: Order of the `favourites` menu item in the sidebar.
@@ -122,7 +121,7 @@ dynamicPlugins:
           to: _<path_to_the_menu_target_page>_ # <9>
           priority: 100 # <10>
 ----
-<1> `default._<menu_group_parent_item_name>_`: Enter the menu group parent item name to configure static main menu items.
+<1> `default._<menu_group_parent_item_name>_`: (Optional) Enter the menu group parent item name to configure static main menu items. If no `default._<menu_item_name>_` has a `parent` value set, this field is not needed.
 <2> `icon`: Enter the menu icon. Required for parent menu items.
 <3> `title`: Enter the menu group title. Required for parent menu items.
 <4> `priority`: (Optional) Enter the order of this menu item within its menu level.