aman204 Hello
my administrator link is fine 200: HTTP/1.1 200 OK
i can't understand what do you mean.
About documentation i have already create the "about us" menu link inside "main menu IT"
i have modify the menu link to move the "about us page" from "main menu" to "main menu IT"
But if you want check the default content "service page" is linked to the original "main menu" but it have the same problem