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-frogpad7

Update the repository description and the URL in README to point to https://githubschool.github.io/github-games-frogpad7 instead of the githubschool copy. Verify that both links resolve to this game's page and that the README displays the corrected URL.

索引モデルが issue の本文から書いたものです。