Closes #656

Pull Request Overview

This PR adds documentation for Swift 6.1 and 6.2 version updates to the document revision history. The changes include new sections documenting the features and improvements introduced in these Swift versions.

• Added Swift 6.2 update entry with documentation improvements for memory safety, control flow patterns, concurrency, protocols, and generics
• Added Swift 6.1 update entry with opaque parameter types and available attribute enhancements ---

Tip: Cus...

Missing space in version number. Should be 'Swift 6.1' instead of 'Swift6.1'. - Swift 6.1 に更新しました

The link path './opaque-types.md#opaque-parameter-types' appears to be incorrect. Based on the context and other links in the file, it should likely be '../language-guide/opaque-types.md#opaque-parameter-types' to match the directory structure pattern used elsewhere. - ジェネリクスのための軽量なシンタックスとして `some` を使用する情報を含めて[Opaque パラメータ型\(Opaque Parameter Types\)](../language-guide/opaque-types.md#opaque-parameter-types) セクションを追加しました