Minor changes

Author: pabel-rh

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

@@ -11,7 +11,8 @@ Main menu items:: The core navigation structure of sidebar is static.
 ----
 dynamicsPlugins:
   frontend:
-    _<plugin_name>_:
+    _<package_name>_:
+
         menuItems:
           default.home:
             title: Home
@@ -51,7 +52,7 @@ dynamicsPlugins:
 ----
 dynamicPlugins:
   frontend:
-    <plugin_name>: # <1>
+    _<plugin_name>_: # <1>
       menuItems:
         <menu_item_name>: # <2>
           icon: # home | group | category | extension | school | _<my_icon>_ # <3>
@@ -76,7 +77,7 @@ dynamicPlugins:
 ----
 dynamicPlugins:
   frontend:
-    <package_name>:
+    _<package_name>_:
       dynamicRoutes:
         - path: /my-plugin
           module: CustomModule