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-pauljong

更新 README 中的儲存庫描述和 URL。確認兩者都指向 https://githubschool.github.io/github-games-pauljong，並確認 README 連結和儲存庫描述解析至該遊戲副本。

由索引模型根據 Issue 內容生成。