docs: add BMWK-EU funding notice to README

Signed-off-by: Bastian Echterhölter <bastian.echterhoelter@sap.com>
On-behalf-of: @SAP <bastian.echterhoelter@sap.com>

Author: nexus49

README.md

@@ -52,3 +52,6 @@ Please refer to the [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md) file in this reposi
 
 Copyright 2025 SAP SE or an SAP affiliate company and openMFP 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/openmfp/example-content).
 
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+<p align="center"><img alt="Bundesministerium für Wirtschaft und Energie (BMWE)-EU funding logo" src="https://apeirora.eu/assets/img/BMWK-EU.png" width="400"/></p>