doc: update README

README.md

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 # AI4 API Keys management tools
+
+This is an internal [AI4EOSC](https://ai4eosc.eu/) tool to manage API keys for
+the AI4EOSC services.
+
+## Acknowledgements
+
+<img width=300 align="left" src="https://raw.githubusercontent.com/AI4EOSC/.github/ai4eosc/profile/EN-Funded.jpg" alt="Funded by the European Union" />
+
+This project has received funding from the European Union’s Horizon Research and Innovation programme under Grant agreement No. [101058593](https://cordis.europa.eu/project/id/101058593)