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-nnalawade

打开 README，检查仓库描述中的两个现有游戏 URL。将这两处引用更新为提供的 github-pages URL，然后验证 README 链接和仓库描述是否指向预期的游戏副本。

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