Game broken

When attempting to access this at https://githubschool.github.io/github-games-jnijjer/, 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 @jnijjer?

Start with the repository settings and check whether GitHub Pages is enabled for the master branch. Use the issue's GitHub Pages URL to verify the result; the requested work is done when it no longer returns a 404.

索引モデルが issue の本文から書いたものです。