Github Graphql readme & history.txt

query {
  repository(owner: "ahonn", name: "blog") {
    object(expression: "master:README.md") {
      ...on Blob {
        text
      }
    }
    defaultBranchRef {
      target {
      ... on Commit {
        history {
          totalCount
        }
      }
    }
    }
  }
}