fix(docs): repoint references to the relocated contributing guide

[hyperpolymath]

fix(docs): repoint references to the relocated contributing guide

The guide moved to .github/CONTRIBUTING.md; these references still resolved
against the old root location and 404 from where they are written. Rewritten
using the correct relative depth.

• README.adoc: CONTRIBUTING.md -> .github/CONTRIBUTING.md

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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• README.adoc

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🔇 Additional comments (1)

README.adoc (1)

346-346: LGTM!

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📝 Summary

Summary by CodeRabbit

• Documentation
  • Updated the contribution guidelines link to point to the current guidance document.

Walkthrough

The README contribution guidelines link now points to .github/CONTRIBUTING.md.

Changes

Contribution guide link

Layer / File(s)	Summary
Update contribution guide link README.adoc	The contribution guidelines link now references .github/CONTRIBUTING.md instead of CONTRIBUTING.md.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~2 minutes

Change: Bug fix

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the documentation change: it repoints references to the relocated contributing guide.
Description check	✅ Passed	The description directly explains that README.adoc now points to .github/CONTRIBUTING.md and identifies the corrected broken reference.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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_{A rabbit checks the guide with care
The README sends readers there
A dotted path now leads the way
To contribution work each day
One small link keeps paths clear}

_{Comment @coderabbitai help to get the list of available commands.}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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