[Doc]: Create a `contribution.md` file with basic guidelines

[gitgoap]

Description

Add a contribution.md file to the repository containing basic contribution guidelines. You can refer to this guide for inspiration.

Acceptance Criteria

• The file should be named contribution.md.
• It should include clear and concise instructions for contributors.
• The content structure should resemble the referenced guide.

[mynk8]

Would like to work on the issue 🚀

[gitgoap]

@p0tat0chip Thanks for taking up this issue.
Raise a Pull Request on or after 1st Jan as SWOC officially starts on this day.