Add funding note (#6)

* Add funding note

README.md

@@ -11,3 +11,9 @@ The `examples` folder contains a few examples showing how to create and
 verify VCBs.
 
 <!-- cargo-rdme end -->
+
+## Funding
+
+This work is funded in part by the U.S. Department of Homeland Security's Science and Technology Directorate under contract 70RSAT24T00000011 (Open-Source and Privacy-Preserving Digital Credentialing Infrastructure).
+Through this contract, SpruceID’s open-source libraries will be used to build privacy-preserving digital credential wallets and verifier capabilities to support standards while ensuring safe usage and interoperability across sectors like finance, healthcare, and various cross-border applications.
+To learn more about this work, [read more here](https://spruceid.com/customer-highlight/dhs-highlight) .