Should be `Octokit` (instead of `OctoKit`). 

See https://github.com/octokit/octokit.net/blob/27580db/README.md#octokit---github-api-client-library-for-net and https://github.com/github/developer.github.com/commit/39cb94fea3e13ed32598e09f45e5b75b6313598f.