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 10:02am

2 Skipped Deployments

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docs.npmx.dev	Ignored	Preview	Feb 6, 2026 10:02am
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[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request updates CONTRIBUTING.md in the "Adding a new locale" section. The [!IMPORTANT] block quote marker was replaced with a ⚠ emoji and bold text formatted as **Important:**. No functional or behavioural changes were made to the documentation.

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 rendering issue with GitHub alerts in indented lists and describes the solution applied.

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✨ Finishing touches

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• Post copyable unit tests in a comment

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[carwack]

Would it help to be even more visible to add an icon in front of it like ⚠️ ?

[RYGRIT]

Yes, you're right.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

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