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-wjustafort/

首先檢查儲存庫描述和 README，尋找指向 githubschool 遊戲副本的連結。將兩個參照更新為 https://githubschool.github.io/github-games-wjustafort/，並驗證描述和 README 現在都指向該 URL。

由索引模型根據 Issue 內容生成。