Update README file - add message about archving repo

[patchkez]

Summary by Sourcery

Documentation:

• Add a note to the README indicating that the repository is archived and no longer actively maintained.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the README.adoc to clearly state that the repository is archived and no longer actively maintained.

File-Level Changes

Change	Details	Files
Clarify repository maintenance status in documentation.	Add an explicit notice that the repository is archived Indicate that the project is no longer actively maintained and may not receive updates or support Ensure the archival message appears prominently in the README to set contributor and user expectations	README.adoc

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