Host documentation page

[ksk-jij]

Description

This PR hosts the documentation page as GitHub Pages.

[Copilot]

Pull Request Overview

This PR configures GitHub Pages hosting for the documentation site by setting up workflow automation and creating a proper site structure. The changes enable automatic deployment of multilingual documentation on push to main branch.

• Enables automatic deployment to GitHub Pages on push to main branch
• Creates a site structure with English and Japanese documentation paths
• Fixes typo in documentation and updates configuration files

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
.github/workflows/jupyter-book-publish.yml	Enables push-based deployment and improves build configuration
docs/index.html	Adds redirect page to English documentation
docs/en/_config.yml	Updates autoapi ignore patterns for documentation generation
docs/ja/_config.yml	Updates autoapi ignore patterns for documentation generation
docs/en/_toc.yml	Updates example file reference in table of contents
docs/ja/_toc.yml	Updates example file reference in table of contents
docs/en/tutorial/usage/basic_usage.ipynb	Fixes typo in documentation reference

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