Hey Damon Zhao!
I am @nubela on Github and I found your project (se77en/se77en.github.io) on Github. There is a small chance you might have heard of some of my projects such as Javelin Browser or Gom VPN.
Anyways, I found that Github Page at se77en/se77en.github.io has a custom domain, and I was wondering if I can help you get it to HTTPS with a LetsEncrypt cert? (for free, of course!)
I work at Kloudsec (a free and minimal CDN for programmers) and I just built this tool to provision LetsEncrypt certs for github pages.
Will you like to try it? (and help me test it?) ;)
意思就是他们做个一个可以免费帮你把 Github Page 加 HTTPS 的服务，活雷锋啊，谁信啊！反正我是没信，这哥们估计也猜到了我不会信，又连着发了几封，就是说反正不花钱，你的博客又没有秘密，试试呗。然后我就试试了。。。试完感觉上天了，赶紧回复这哥们这东西好啊，爽歪歪啊，你是活雷锋啊。他说我服务这么好你写篇博客替我宣传呗，我说必须哒！于是有个这篇博客。