:memo: [README] Add steps for python venv installation

[ishandutta0098]

Problem

The README presently includes only conda installation but we want to support more installations.

Solution

1. Add steps to create and install mukh in a python venv in the README
2. Update the same in the docs installation page

Contributing Guidelines

Refer to contributing guide for required contribution instructions.

[indrasn0wal]

@ishandutta0098 assign me this issue.

[ishandutta0098]

Hey @indrasn0wal I have assigned this to you!

[Wendoom-dev]

@ishandutta0098 if this issue is still open I would Iike to take this up

[PulkitGigoo99]

@ishandutta0098 - is the issue still open?