When setting up a personal blog, because the project name is not case sensitive when creating the repository, then deploy access to 404 as shown in the image below：

But if you set the project name in the repository to your github username +.github+.io, you’ll be able to access it immediately It must be your github user name, which should be consistent with the github user name. If you do not want to access the address with the suffix.io, you can purchase a personal domain and deploy it in your github project settings

在搭建个人博客的时候，因为创建仓库设置项目名时没注意大小写，然后部署访问一直404。像下图这样：

后来全部改成小写也没有用，翻盘重新安装也没有用。 但是如果把仓库中设置的项目名设置为：你的github的用户名+.github+.io,马上就可以访问啦。一定要是你github的用户名，要和github的用户名保持一致，如果不想要这种后缀为.io的访问地址，后期可以购买一个个人域名部署上去。在你github项目的settings里面设置一下就好了。