Added the missing CONTRIBUTING.md file

[joise-s-arakkal]

Summary by CodeRabbit

• Documentation
  • Added comprehensive contribution guidelines to help community members contribute effectively. Coverage includes the complete contribution workflow (fork → branch → PR), code of conduct, coding standards and style recommendations, project structure requirements, step-by-step project addition instructions, and practical examples for common Git operations and development workflows.

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[coderabbitai]

Walkthrough

A new CONTRIBUTING.md document has been added, establishing contribution guidelines for the AI Engineering Hub. The document outlines the workflow, code of conduct, contribution process, project structure rules, code style recommendations, project addition procedures, and criteria for strong contributions.

Changes

Cohort / File(s)	Summary
Documentation CONTRIBUTING.md	Added comprehensive contribution guidelines covering fork→branch→PR workflow, code of conduct, issue finding and PR processes, project structure requirements, code style recommendations, project addition steps with naming conventions and README requirements, and characteristics of strong contributions with examples

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰✨ A welcome guide now greets us here,
With pathways clear and standards dear,
Fork and branch, then make your mark,
Contributing wisdom lights the dark!
Together stronger, hop we go, 🌟

Pre-merge checks and finishing touches

✅ 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 accurately describes the main change: adding a CONTRIBUTING.md file that was previously missing from the repository.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

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

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 4ce9513 and dd9e032.

📒 Files selected for processing (1)

• CONTRIBUTING.md (1 hunks)

🔇 Additional comments (1)

CONTRIBUTING.md (1)

1-85: Comprehensive and welcoming contribution guide—well executed.

This is a high-quality, well-organized contribution guide that clearly outlines the fork → branch → PR workflow, provides practical examples (commit messages, git commands), and sets clear expectations around code style and project structure. The tone is inclusive and encouraging, and the guidance on what makes a strong contribution (teaching new techniques, beginner-friendly explanations, demos, benchmarks) is helpful.

One minor issue: Line 33 references "Llama-3" (hyphenated), but Meta's official branding uses "Llama 3" (space). Consider updating to match the official naming convention for consistency and accuracy.

The external resources (Contributor Covenant link, GitHub issues, newsletter signup) and maintainer reference (@patchy631) could not be fully verified in this context, but these should be periodically checked to ensure they remain current. If feasible, consider making the "93+ projects" count more flexible (e.g., "90+ projects" or "90+ hands-on") to reduce the need for updates as the repository grows.

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