Fix Documentation Issues in Contributors Quick Start

[amolsr]

What do you see as an issue?

While setting up the Airflow source code, I found some documentation inconsistencies that need fixes.

Files Affected:
contributing-docs/03_contributors_quick_start.rst

Solving the problem

Need to update the screenshot and output screen.

Anything else

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[eladkal]

Fixed in #47235