Create new version of Contribution Guidelines for our projects

A feature with clear details about the research done and need for the feature is considered a good feature request.
(keeping this in mind we have to improve the following guidelines)
- First contributions
- Pull requests
- issue labels
- commit messages
for further details you can visit the doc link mentioned below-
https://docs.google.com/document/d/1ysCUVb1IuuQykR4d5a22BoIWwafRjw70ctQ3Kkf2SHw/edit
https://docs.google.com/document/d/1ccY9z46xF6a_tHtd5QcdmrxtEQaw1Mt2PfA-aKUm0gg/edit#heading=h.glme02jzxnqq

(from old title) add contributing guidelines to improve the following features like pull request, first time issues etc.