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-blenway

Update the URL in the repository description and the URL in the README to point to https://githubschool.github.io/github-games-blenway. Verify both links resolve to this copy of the game and that no reference to githubschool's other copy remains.

索引モデルが issue の本文から書いたものです。