gh-pages 不显示主页的原因
1. package.json 文件里 homepage设置
https://your-git-user-name.github.com/your-git-name
2.需要展示的页面不能被 .gitignore 文件忽略(否则默认展示 README.md 文件内容)
3.设定指定目录
https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site