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-hershkashyap/

Open the README and the repository description, then compare both links with the URL specified in the issue. Update each reference so it points to https://githubschool.github.io/github-games-hershkashyap/; the work is done when both locations use that URL.

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