Add missing contribution guide link in README

[Stevenjoy90115]

Summary
The README file provides an overview of the repository but currently does not include a direct link to the contribution guide.
Adding this link will make it easier for new contributors to understand how to contribute effectively.

Steps to Reproduce

1. Open the README.md file on the main branch.
2. Scroll to the section about contributing or community involvement.
3. Observe that there is no clickable link to CONTRIBUTING.md or contribution instructions.

Expected Behavior
The README should include a line like:

See CONTRIBUTING.md for detailed contribution steps.

Proposed Solution
Add a link to the contribution guide in the README under the "Contributing" or similar section.

Why This Is Important
This small change will improve documentation clarity and help new contributors find the correct steps to start contributing.

Labels
documentation, enhancement, good first issue