Add GitHub Pages publishing instructions to README

[Waganawa-Megumin]

Motivation

• Provide simple step-by-step guidance for publishing the repository via GitHub Pages assuming index.html is at the repository root.

Description

• Added README.md containing instructions to open the repository Settings → Pages, set Build and deployment Source to Deploy from a branch, select the Branch (e.g., main) and Folder /root, save, and then visit the shown GitHub Pages URL to verify the site.

Testing

• No automated tests were run for this documentation-only change.

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Codex Task

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Use the actual Pages root folder option

When the site files live at the repository root, GitHub Pages' branch source folder is / / /(root), not /root; the official docs describe the source folder as either the repository root (/) or /docs. Following this step as written sends users looking for a non-existent /root folder option, so they cannot complete the documented publishing flow without guessing the intended setting.

Useful? React with 👍 / 👎.