[doc] add NLNet reference

README.md

@@ -45,3 +45,10 @@ Bugs or suggestions? Visit the [issue tracker](https://github.com/asciimoo/omnom
 ## License
 
 AGPLv3
+
+## Funding
+
+This project is funded through [NGI Zero Core](https://nlnet.nl/core), a fund established by [NLnet](https://nlnet.nl) with financial support from the European Commission's [Next Generation Internet](https://ngi.eu) program. Learn more at the [NLnet project page](https://nlnet.nl/project/Omnom-ActivityPub).
+
+[<img src="https://nlnet.nl/logo/banner.png" alt="NLnet foundation logo" width="20%" />](https://nlnet.nl)
+[<img src="https://nlnet.nl/image/logos/NGI0_tag.svg" alt="NGI Zero Logo" width="20%" />](https://nlnet.nl/core)