Readme: add prisma engine

Author: TheMostDiligent

README.md

@@ -1080,6 +1080,9 @@ We would appreciate it if you could send us a link in case your product uses Dil
 * [Vrmac Graphics](https://github.com/Const-me/Vrmac): A cross-platform graphics library for .NET<br />
   <img src="https://github.com/Const-me/Vrmac/blob/master/screenshots/Linux/TigerFullHD-1.png" width=600>
 
+* [Prisma Engine](https://github.com/deni2312/prisma-engine): A modern engine that shows rendering techniques like hardware raytracing and clustered shading
+  <img src="https://github.com/deni2312/prisma-engine/blob/main/bin/images/prism.png" width=600>
+
 
 <a name="disclaimer"></a>
 ## Disclaimer