Game broken

When attempting to access this at https://githubschool.github.io/github-games-csandhu/, I am getting a 404. This could be caused by a couple things:

- GitHub pages needs to be enabled on master. You can fix this in the repository settings.
- the index.html file is incorrectly named inde.html. We will fix this together in class.

Can you please fix the first bullet @csandhu?

从仓库设置开始，验证 master 分支的 GitHub Pages 配置。然后检查报告中的项目 URL；当它能够成功加载而不是返回 404 时，即表示完成。

由索引模型根据 Issue 内容生成。