docs: Created a contributing.md file

[0nikhilkumar]

What does this PR do?

Created a CONTRIBUTING.md

Fixes #5

Type of change

This is adding a contributing.md file which is docs category issue

How should this be tested?

• Are there environment variables that should be set?
• What are the minimal test data to have?
• What is expected (happy path) to have (input and output)?
• Any other important info that could help to test that PR

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

Checklist

• My code doesn't follow the style guidelines of this project
• I haven't commented my code, particularly in hard-to-understand areas
• I haven't checked if my PR needs changes to the documentation
• I haven't checked if my changes generate no new warnings
• I haven't added tests that prove my fix is effective or that my feature works
• I haven't checked if new and existing unit tests pass locally with my changes

[github-actions]

Thank you for following the naming conventions! 🙏

[piyushgarg-dev]

Hi @0nikhilkumar, Thanks for contributing. I am closing this PR in favor of #8 😄.
Please feel free to open a new issue and PR to add more content to existing Contributing and Readme File.