Update README.md

Added Non Maintainable text

README.md

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-![commercetools logo](https://cdn.rawgit.com/commercetools/press-kit/master/PNG/72DPI/CT%20logo%20horizontal%20RGB%2072dpi.png)
+<div style="background-color: yellow; color: black; padding: 10px; text-align: center; font-weight: bold;">
+  <h2>🚨 Non-maintainable 🚨</h2>
+  <p>Starting January 1, 2025, we will no longer provide maintenance or updates for the CLI ImpEx tools. After this date, this tool will no longer receive bug fixes, security patches, or new features.</p>
+</div>
+
+
+<img src="https://impex.europe-west1.gcp.commercetools.com/static/images/ct-logo.svg" alt="commercetools logo" width="200">
 
 # Category sync