[stzn/the-swift-programming-language-jp] Pull request closed: #379 翻訳についての提案

[stzn/the-swift-programming-language-jp] Issue closed: #378 翻訳についての提案

[stzn/the-swift-programming-language-jp] Pull request closed: #376 [Opaque型]typo修正

[stzn/the-swift-programming-language-jp] Issue closed: #375 原文の変更の反映

[stzn/the-swift-programming-language-jp] Issue opened: #380 原文の修正の反映

[stzn/the-swift-programming-language-jp] New comment on pull request #379: 翻訳についての提案