Documentation: Improve virtualenvwrapper setup instructions for new contributors

[Heyshubham]

Issue Id: #7739

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.38%. Comparing base (1deffd6) to head (f5cc228).

Additional details and impacted files

@@ Coverage Diff @@ ## main #7741 +/- ## ======================================= Coverage 99.38% 99.38% ======================================= Files 1091 1091 Lines 97919 97919 ======================================= Hits 97313 97313 Misses 606 606 

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