URL in description and README broken

The URL in the repository description and 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-pthall

檢查 repository 描述和 README，找出不正確的遊戲 URL。將這兩處參照更新為 https://githubschool.github.io/github-games-pthall，然後確認描述和 README 中的連結是否指向該位址。

由索引模型根據 Issue 內容生成。