docs: update README

[e06084]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @e06084, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing the readability and presentation of the project's documentation across multiple languages. It introduces intentional trailing spaces within the English, Japanese, and Chinese README files to control line breaks in their rendered Markdown output. To support this formatting, the pre-commit configuration has been updated to prevent automated tools from removing these specific trailing spaces from the README files.

Highlights

• Pre-commit Configuration Update: Modified the .pre-commit-config.yaml to exclude README.*.md files from the trailing-whitespace check, allowing intentional trailing spaces in these documentation files.
• README Formatting: Updated the English (README.md), Japanese (README_ja.md), and Chinese (README_zh-CN.md) README files by adding trailing spaces to numerous lines. This change is typically done to enforce specific line breaks when Markdown is rendered.

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[gemini-code-assist]

Code Review

This pull request updates the formatting in the README.md, README_ja.md, and README_zh-CN.md files by adding trailing spaces to create hard line breaks for better readability. To accommodate this, the trailing-whitespace pre-commit hook is disabled for these files. My review suggests an alternative approach for improved maintainability. Instead of using invisible trailing spaces, I recommend using a visible trailing backslash (\) for hard line breaks. This is a more robust method supported by GitHub Flavored Markdown and less prone to accidental removal by editors. Adopting this suggestion would also allow for the re-enabling of the trailing-whitespace hook, contributing to better code hygiene across the repository. I've provided specific suggestions in the README files to illustrate this.

[gemini-code-assist]

This exclusion for trailing-whitespace was added to support hard line breaks in README files using trailing spaces. If the suggestion to use trailing backslashes (\) in the README files is adopted, this exclusion line is no longer necessary and should be removed. This would improve repository hygiene by ensuring no unintended trailing whitespace is committed.

[gemini-code-assist]

For better maintainability, consider using a trailing backslash (\) for hard line breaks instead of two spaces. Trailing spaces are invisible and can be easily stripped by editors, while a backslash is explicit and visible. This change would also allow you to re-enable the trailing-whitespace pre-commit hook for these files.

Suggested change

	**Diverse Data Sources** - Connect to where your data lives
	✅ **Local Files**: JSONL, CSV, TXT, Parquet
	✅ **SQL Databases**: PostgreSQL, MySQL, SQLite, Oracle, SQL Server (with stream processing)
	✅ **Cloud Storage**: S3 and S3-compatible storage
	**Diverse Data Sources** - Connect to where your data lives\
	✅ **Local Files**: JSONL, CSV, TXT, Parquet\
	✅ **SQL Databases**: PostgreSQL, MySQL, SQLite, Oracle, SQL Server (with stream processing)\
	✅ **Cloud Storage**: S3 and S3-compatible storage\

[gemini-code-assist]

For better maintainability, consider using a trailing backslash (\) for hard line breaks instead of two spaces. Trailing spaces are invisible and can be easily stripped by editors, while a backslash is explicit and visible. This change would also allow you to re-enable the trailing-whitespace pre-commit hook for these files.

Suggested change

	**多様なデータソース** - データがある場所に接続
	✅ **ローカルファイル**：JSONL、CSV、TXT、Parquet
	✅ **SQL データベース**：PostgreSQL、MySQL、SQLite、Oracle、SQL Server（ストリーミング処理対応）
	✅ **クラウドストレージ**：S3 および S3 互換ストレージ
	**多様なデータソース** - データがある場所に接続\
	✅ **ローカルファイル**：JSONL、CSV、TXT、Parquet\
	✅ **SQL データベース**：PostgreSQL、MySQL、SQLite、Oracle、SQL Server（ストリーミング処理対応）\
	✅ **クラウドストレージ**：S3 および S3 互換ストレージ\

[gemini-code-assist]

For better maintainability, consider using a trailing backslash (\) for hard line breaks instead of two spaces. Trailing spaces are invisible and can be easily stripped by editors, while a backslash is explicit and visible. This change would also allow you to re-enable the trailing-whitespace pre-commit hook for these files.

Suggested change

	**多样化数据源** - 连接到你的数据所在之处
	✅ **本地文件**：JSONL、CSV、TXT、Parquet
	✅ **SQL 数据库**：PostgreSQL、MySQL、SQLite、Oracle、SQL Server（支持流式处理）
	✅ **云存储**：S3 和 S3 兼容存储
	**多样化数据源** - 连接到你的数据所在之处\
	✅ **本地文件**：JSONL、CSV、TXT、Parquet\
	✅ **SQL 数据库**：PostgreSQL、MySQL、SQLite、Oracle、SQL Server（支持流式处理）\
	✅ **云存储**：S3 和 S3 兼容存储\