Update README

[harshiniks]

A README is often the first item a visitor will see when visiting your repository. We recommend that your README includes information on:

• What the project does
• Why the project is useful
• How users can get started with the project
• Explain to users that there is a LEARN.md
• Mention your code of conduct
• Who maintains and contributes to the project

Most of the above info is already part of your Readme except a few. So please go through above list and add anything more that'll help others learn more about the project and process.