Add Mroonga pronunciation

[abetomo]

No description provided.

[Copilot]

Pull Request Overview

This PR adds pronunciation guides for the "Mroonga" name to improve user understanding of how to pronounce the project name. The change adds phonetic representations in both English and Japanese versions of the website.

• Adds IPA (International Phonetic Alphabet) pronunciation guide in English version
• Adds katakana pronunciation guide in Japanese version

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
index.html	Adds IPA pronunciation "(múlúnɡά)" after "Mroonga" in the English about section
ja/index.html	Adds katakana pronunciation "（むるんが）" after "Mroonga" in the Japanese about section

Comments suppressed due to low confidence (1)

index.html:10

• The IPA notation 'múlúnɡά' appears to use non-standard characters. Standard IPA would typically use 'muɾuŋɡa' or similar notation without the acute accents, as these diacritics don't represent standard IPA stress or tone markers for this pronunciation.

      <p>Mroonga (múlúnɡά) is a storage engine for MySQL. It provides fast fulltext search feature for all languages including Chinese, Japanese and Korean to all MySQL users. Mroonga was called Groonga storage engine.</p>