https://docs.github.com/cn/enterprise-server@2.21/articles/adding-an-email-address-to-your-github-account | 17:13:06 October 19, 2020

Got an HTTP 301 response at crawl time

Redirecting to...

/cn/enterprise-server@2.21/github/setting-up-and-managing-your-github-user-account/adding-an-email-address-to-your-github-account