DOC: Add Code of Conduct

[aasthakourav20]

What's wrong with the existing documentation

This repo has no Code of Conduct

Add ScreenShots

No response

Record

• [X] I agree to follow this project's Code of Conduct
• [X] I'm a GSSOC'24 contributor
• [X] I want to work on this issue

[Mayank2808sharma]

Go ahead I have assigned it to you @aasthakourav20

[sanjay-kv]

@Mayank2808sharma this is PM of Gssoc, we have mailed regarding to add me into the repo. so I can handle the label issues by contributor