Remove unnecessary backticks in README and improve wording

[hardBSDk]

No description provided.

[greptile-apps]

Greptile Summary

This PR improves the README by simplifying the opening note - removing cluttered backticks around individual letters and replacing the overly complex acronym explanation with clear, straightforward prose.

• Simplified "global regex expression print grep" to "grep tool"
• Simplified "github issues tui viewer gitv" to "the GitHub Issues TUI viewer: gitv"
• Improved overall readability and professional appearance of the documentation

Important Files Changed

Filename	Overview
README.md	Improved readability by simplifying acronym explanation and removing cluttered backticks

_{Last reviewed commit: 059b77e}

[greptile-apps]

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