Refine README documentation

[StrangeRanger]

This pull request primarily updates documentation for several hardening scripts, focusing on improving clarity, accuracy, and the tone of warnings and instructions. The most significant changes are the revision of warning notes, improved safety guidance, and clearer section headings.

Documentation and Safety Notes

• Updated warnings in README.md and hardening/SSHD Hardening/README.md to use a less alarming tone and provide more actionable safety guidance for users running SSHD hardening scripts. [1]], [2]])
• Removed redundant or potentially confusing warnings about SSH configuration from the root locker script documentation, clarifying that it does not modify SSH settings. ([hardening/Root Locker/README.mdL26])
• Improved safety notes in the UFW Cloudflare script documentation by rephrasing and condensing instructions to emphasize the importance of recovery access and clarify the script’s scope. ([hardening/UFW Cloudflare/README.mdL53-R53])

Section Headings and Structure

• Changed section headings from "Installation Summary" to "Execution Summary" in both the Nginx WAF and UFW Cloudflare documentation for consistency and clarity. [1]], [2]])
• Removed an unnecessary statement about script prompting from the SSHD Hardening documentation to streamline instructions. ([hardening/SSHD Hardening/README.mdL24-L25])

[codacy-production]

Up to standards ✅

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[Copilot]

Pull request overview

Documentation-only refinements across several hardening script READMEs, adjusting warning tone, removing redundant notes, and renaming section headings for consistency.

Changes:

• Softens/relocates SSHD hardening warnings and removes a redundant prompt note.
• Renames "Installation Summary" → "Execution Summary" in Nginx WAF and UFW Cloudflare READMEs.
• Trims redundant safety notes in UFW Cloudflare and Root Locker READMEs.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
README.md	Removes the top-level SSHD warning callout.
hardening/SSHD Hardening/README.md	Downgrades WARNING admonition to NOTE; drops the prompt-before-change line.
hardening/UFW Cloudflare/README.md	Renames heading; condenses Safety Notes.
hardening/Root Locker/README.md	Removes the SSH-config clarification bullet.
hardening/Nginx WAF/README.md	Renames heading to "Execution Summary".

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