docs: fix sandbox link and node badge

[operagxoksana]

Summary by CodeRabbit

• Documentation
  • Made the Node.js version badge clickable with a link to the official releases page.
  • Updated the website link to use HTTPS protocol.

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[coderabbitai]

📝 Walkthrough

Walkthrough

README.md updated with two minor improvements: the Node.js badge now includes a clickable link to the Node.js releases page, and the website link protocol was upgraded from implicit http to explicit https.

Changes

Cohort / File(s)	Summary
Documentation Updates README.md	Node.js badge converted to linked badge; website link protocol upgraded to https

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A badge now clicks where once it lay,
https brightens links today,
Small touches make docs shine so grand,
Care in every corner of the land! 📎✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'docs: fix sandbox link and node badge' accurately describes the two main changes in the PR: fixing the website link and updating the Node.js badge in the README documentation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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