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-naveen513

Check the repository description and README, both named in the issue. Replace the existing game URL with https://githubschool.github.io/github-games-naveen513, then verify that both links point to the repository's copy.

索引モデルが issue の本文から書いたものです。