i18n(ja): update markdown-content.mdx

[morinokami]

Description (required)

• Update markdown-content.mdx
  • Fix incorrect code examples in the Markdown guide #14032

Related issues & labels (optional)

• Closes #
• Suggested label: i18n

[netlify]

❌ Deploy Preview for astro-docs-2 failed. Why did it fail? →

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🔨 Latest commit	a62bccd
🔍 Latest deploy log	https://app.netlify.com/projects/astro-docs-2/deploys/6a2e1810989c3300084be5c3

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Tracked Files

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ja/guides/markdown-content.mdx	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

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[morinokami]

The failing checks here are all leftover Netlify checks. Since #14025 migrated deploys to Cloudflare Workers, the Netlify integration seems to still be attached to the repo and failing on every PR.

[ArmandPhilippot]

Thanks, LGTM!

re: Netlify, yeah it's a bit annoying at the moment. I think Matthew kept it in case we encounter an issue over the weekend, so we could easily revert to Netlify if needed. This will be probably be fixed soon!

[morinokami]

@ArmandPhilippot Thanks for the review and the explanation! That makes sense. Hopefully it gets sorted soon 🙏

[ArmandPhilippot]

@morinokami In case you noticed Lunaria not being updated after merging this PR, this is now fixed (#14061). Sorry for the inconvenience! At least, we don't need to send a dummy change 😅 , this was only a build issue, the dashboard is now up-to-date!