github pages域名绑定

问题描述：

由于主机记录（@）作为MX记录用于企业邮箱，不能在用作CNAME记录，因此使用A记录实现免www的直接访问。

参考：

https://help.github.com/articles/using-a-custom-domain-with-github-pages/
https://help.github.com/articles/setting-up-an-apex-domain/

Configuring A records with your DNS provider
Contact your DNS provider for detailed instructions on how to set up A records.
Follow your DNS provider’s instructions to create A records that point your custom domain to the following IP addresses:
185.199.108.153
185.199.109.153
185.199.110.153
185.199.111.153
Tip: Your DNS changes can take over a full day to update and the wait varies among DNS providers.

GitHub Pages设置

域名解析设置（IP地址是旧的）