[EXTERNAL] fix: clarify file-details subject hints misleading comment and correct awk examples qouting

[e-aub]

Why?

The original file-details/README.md exercise instructions contained misleading comments about awk field usage and included incorrect quotes in examples. This could confuse learners and cause syntax errors when following the hints.

Solution Overview

• Corrected the comments describing awk fields to reflect what is actually printed.
• Replaced smart quotes with straight quotes in all awk examples.
• Reorganized examples for better readability and clarity for beginners.

Implementation Details

• Updated all awk example commands to use proper shell-compatible quotes.
• Clarified which columns are selected in each awk example, avoiding misleading “all fields” comments.

Build Images

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