Added instructions on installing psycopg2 using psycopg2-binary

[robel16]

What type of PR is this?

Check all applicable

• [ ] 🍕 Feature
• [ ] 🐛 Bug Fix
• [x] 📝 Documentation
• [ ] 🧑‍💻 Refactor
• [ ] ✅ Test
• [ ] 🤖 Build or CI
• [ ] ❓ Other (please specify)

Related Issue :

• Resolve #228

What does this PR do ?

This PR updates the documentation to include instructions for installing psycopg2 and provides a link to the official documentation for further details.

Consideration :

Updating the documentation guides the user to the right link for installing psycopg2-binary, ensuring clarity and ease of access to the necessary information.

How to test ?

No testing required for documentation changes.

Screenshots :

[optional] What gif best describes this PR or how it makes you feel?

[kshitijrajsharma]

psycopg2-binary is recommended only for development and not for production , Lets mention that too