Customize "about us" and "contact us" pages
Normally, we just need "/contact", we will have a contact default page, as you can see:
we just need "/about-us", we will have the "about us" default page, as you can see:
And if you want to edit anything in our default pages, you can use the template path hints extension to find and edit code or you can edit directly in admin --> content --> blocks. But please note that we will don't support you If you have any more problems when you edit something.