Adding Documentation for the project

[Dharmi-dev]

Describe the bug

• [ ] Information addition regarding the newest change through a PR.
• [ ] Typo error.
• [X] New category addition.
• [ ] Refractoring sentences that make more sense.
• [ ] Fixing broken links.
• [ ] Refractors / reformating of the document.

Additional Context

The documentation need to be completed by addition of CONTRUBUTING GUIDELINES for the project. It will made the contributors, clear approach to contribute in the project.