Update how-to-prompt-for-command-line-input

[Yash-Handa]

Hey @chowdhurian and @fhemberger,
In accordance with issue #1977, I have updated the Article how-to-prompt-for-command-line-input with the following changes:

• Exchanged direct stdin usage with readline module
• Added example of readline module.
• some other miscellaneous updates and refactors.

If there are any suggestion/enhancement/tips please feel free to tell me, I would love to incorporate those changes in this Article 😄

NOTE: This article explains prompt package usage, which hasn't been updated in 2yrs. Please let me know if some other package should be used instead of this like (inquirer, prompts, etc)

[ghost]

@Yash-Handa：LGTM！there're some nits in my comments, if possible you can fix or feedback to me :)

[Yash-Handa]

Thanks, @Maledong for such precise and detailed comments 😄 (fixed those)

Thanks, @fhemberger for updating the Articles with ```js and ```bash will use this syntax in future Articles 😄

[ghost]

@Yash-Handa：Thanks!