Updated the README.md file

[ymaheshwari1]

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Have you read the Contributing Guidelines on Pull Requests?

YES

Description

Added the step to create and activate the virtual environment. Also updated the command to clone the repository.

Checklist

• [x] I've read the contribution guidelines.
• [x] This PR mets all the requirements like Clean Code, proper README and Documentation

Related Issues or Pull Requests

Fixes: #132