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-allaambinder/

更新 repository 描述和 README，这两者目前都指向 GitHub School 的副本。将每个 URL 替换为 https://githubschool.github.io/github-games-allaambinder/，并验证两个链接都能打开 repository 中的游戏副本。

由索引模型根据 Issue 内容生成。