Adding top level domains to a WordPress Multisite Network

How to add top level domains to a WordPress Multisite Network.
1. Add a sub site: Network Admin - Sites. Add New.
Add the name of the top level domain. Add the Site Title and Admin Email.
Click the Add Site button.

2. Login to your web host. Go to the Control Panel. To the Domains section. Find the domain you added to the multisite. Change the domains "Document Root" and have it point to the multisite "Document Root".

3. Go back to the WordPress Multisite Network Sites page. Edit the sub site you added. Change it to the correct domain name. Save the Changes and view the sub site. It should now show the top level domain.