Add www.white.json and the email associated

[gnof-the-shark]

Requirements

• I agree to the Terms of Service.
• My file is following the domain structure.
• My website is reachable and completed.
• My website is software development related.
• My website is not for commercial use.
• I have provided contact information in the owner key.
• I have provided a preview of my website below.

Website Preview

https://gnof-the-shark.github.io/Blog/

[is-a-dev-reviewbot]

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2. Check if the filename, file format, and records are valid. If you don't know if it's valid, please read this part of the documentation and use a JSON validator/formatter, like jsonlint. Make sure that the file is in the domains directory and not somewhere else in the repository.
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[Copilot]

Pull request overview

This PR registers new .is-a.dev subdomains by adding DNS configuration JSON files under domains/, covering white (mail-related) and livres (CNAME to GitHub Pages).

Changes:

• Add white root subdomain with MX/TXT records (ImprovMX + SPF).
• Add www.white as a CNAME to gnof-the-shark.github.io.
• Add livres and www.livres as CNAMEs to gnof-the-shark.github.io.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
domains/white.json	Adds MX/TXT records (mail + SPF) for white.is-a.dev.
domains/www.white.json	Adds CNAME for www.white.is-a.dev to GitHub Pages.
domains/livres.json	Adds CNAME for livres.is-a.dev to GitHub Pages.
domains/www.livres.json	Adds CNAME for www.livres.is-a.dev to GitHub Pages.