How to set up the domain service in Github?

For more informaion, please refer to the following website: Github Domain setup.

• Configure the DNS in your priviate domain according to the figure below.
• To create A records, point your apex domain to the IP addresses for GitHub Pages:
  185.199.108.153
  185.199.109.153
  185.199.110.153
  185.199.111.153
• To create AAAA records, point your apex domain to the IP addresses for GitHub Pages:
  2606:50c0:8000::153
  2606:50c0:8001::153
  2606:50c0:8002::153
  2606:50c0:8003::153
  
• Please make sure that you have a domain CNAME record with your github webpage.