Fix Typographical Errors

[Pricstas]

This pull request addresses several typographical errors and stylistic improvements in the documentation files howitworks.md and what-is-semaphore.md.

Changes Made:

1. Corrected grammatical usage in descriptions:
   • Replaced "comprised of" with "comprises" for accuracy.
   • Adjusted phrasing for clarity (e.g., "at the same booth" instead of "a the same booth").
2. Improved conciseness by replacing verbose expressions:
   • Changed "in a unique way" to "uniquely."

These updates improve the overall readability and precision of the documentation.

Related Issues

No open issues are linked to this pull request. The changes are general improvements identified during documentation review.

Checklist

• My code follows the style guidelines of this project.
• I have performed a self-review of my changes.
• All modified content was tested for clarity and correctness.
• No new warnings were generated as a result of this update.
• I ran yarn format and yarn lint to ensure code quality.