chore: resolve broken alert rendering in nested list

[RYGRIT]

Fixed a small rendering issue here. GitHub alerts (like [!IMPORTANT]) don't render correctly when indented inside lists. I switched it to standard bold text (Important:) .

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Feb 6, 2026 2:33am

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Feb 6, 2026 2:33am
npmx-lunaria	Ignored		Feb 6, 2026 2:33am

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request updates the CONTRIBUTING.md file, specifically within the "Adding a new locale" section. A markdown formatting change has been implemented where an emphasis marker [!IMPORTANT] has been replaced with bold text formatted as **Important:**. This change is purely stylistic with no functional or behavioural modifications to the documentation content.

Suggested reviewers

• danielroe
• trueberryless

🚥 Pre-merge checks | ✅ 1

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description check	✅ Passed	The pull request description clearly explains the change: fixing a rendering issue with GitHub alert blocks when indented in lists by replacing them with bold text.

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✨ Finishing touches

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• Create PR with unit tests
• Post copyable unit tests in a comment

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