docs: Add Code of Conduct link and EU funding logo to README

PR (#140)

Author: isanmaz

README.md

@@ -27,3 +27,5 @@ We as members, contributors, and leaders pledge to make participation in our com
 ## Licensing
 
 Copyright 2025 SAP SE or an SAP affiliate company and OpenKCM contributors. Please see our [LICENSE](LICENSE) for copyright and license information. Detailed information including third-party components and their licensing/copyright information is available [via the REUSE tool](https://api.reuse.software/info/github.com/openkcm/plugin-sdk).
+
+<p align="center"><img alt="Bundesministerium für Wirtschaft und Klimaschutz (BMWK)-EU funding logo" src="https://apeirora.eu/assets/img/BMWK-EU.png" width="400"/></p>