[stzn/the-swift-programming-language-jp] Issue opened: #662 OKとErrorコメントの統一

[stzn/the-swift-programming-language-jp] Pull request closed: #657 [ドキュメント改訂履歴]Swift 6.1、6.2を追加

[stzn/the-swift-programming-language-jp] Issue closed: #656 Revision Historyの更新