Adding code-of-conduct in repo.

why code-of-conduct:- We propose adding a comprehensive Code of Conduct to our repository to ensure a safe, respectful, and inclusive environment for all contributors and users. This code will serve as a guideline for behavior, promoting diversity, reducing conflicts, and attracting a wider range of perspectives.

Issue type

• [✅] Docs

@thinkwee If you were planning this issue kindly assign it to me! I would love to work on it ! Thank you !

I am not an admin of the repo. Regards.

Thank you very much for your proposal. We will consider your pull request.