URL in description and README broken

The URL in the repository description and the one in the README are pointing to githubschool's copy of the game instead of yours.

Please fix both so they point to your copy of the game at https://githubschool.github.io/github-games-ScotMeyer

更新 repository 描述和 README 中的 URL，使二者都指向 https://githubschool.github.io/github-games-ScotMeyer。然后检查 repository 页面和 README，确认这两个链接现在都解析到此游戏副本。

由索引模型根据 Issue 内容生成。