gh56 - update readme

[zghp]

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[Copilot]

Pull request overview

Updates the project README to reflect the current “alias-first” XTS CLI workflow and modernizes the onboarding documentation for installation and usage.

Changes:

• Reworks README structure (title, logo, new table of contents) and refreshes feature descriptions.
• Updates installation instructions and adds a new “Alias Management & Usage” section.
• Adds an inline example .xts YAML configuration.

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[Copilot]

There is an extra stray separate line at the end of the README that looks accidentally left over. It should be removed to avoid confusing readers.

Suggested change

separate

[TB-1993]

This suggestion is probably all that needs changing before merging