Add DPG badge to README (#4389)

Author: dafeder

README.md

@@ -5,7 +5,7 @@
 [![Maintainability](https://api.codeclimate.com/v1/badges/a02bf3362b94749579a1/maintainability)](https://codeclimate.com/github/GetDKAN/dkan/maintainability)
 [![Test Coverage](https://api.codeclimate.com/v1/badges/a02bf3362b94749579a1/test_coverage)](https://codeclimate.com/github/GetDKAN/dkan/test_coverage)
 [![GPL license](https://img.shields.io/badge/License-GPL(>=2)-blue.svg)](http://www.gnu.org/licenses/gpl.html)
-
+[![DPG Badge](https://img.shields.io/badge/Verified-DPG-3333AB?logo=data:image/svg%2bxml;base64,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)](https://www.digitalpublicgoods.net/r/dkan)
 ---
 
 [![Getting Started with DKAN](https://img.youtube.com/vi/SnA22Lb6r_M/0.jpg)](https://youtu.be/SnA22Lb6r_M?si=WqU-FKGb1iGhc5Vz)