add/replace images for core-cuda-jammy docs

Author: teja-kasm

docs/core-cuda-jammy/README.md

@@ -6,4 +6,4 @@ This image is used by our open-source containerized [Machine Learning Desktop](h
 
 ![Screenshot][Image_Screenshot]
 
-[Image_Screenshot]: https://f.hubspotusercontent30.net/hubfs/5856039/dockerhub/image-screenshots/core-cuda-focal.png "Image Screenshot"
+[Image_Screenshot]: https://5856039.fs1.hubspotusercontent-na1.net/hubfs/5856039/dockerhub/image-screenshots/core-cuda-jammy.png "Image Screenshot"

docs/core-cuda-jammy/demo.txt

@@ -2,7 +2,7 @@
 
 **Launch a real-time demo in a new browser window:** <a href="https://app.kasmweb.com/#/cast/4398794189" target="_blank">Live Demo</a>.
 
-<a href="https://app.kasmweb.com/#/cast/4398794189" target="_blank"><img src="https://5856039.fs1.hubspotusercontent-na1.net/hub/5856039/hubfs/dockerhub/casting-buttons/CoreCUDAFocal.png" width="300" height="104"></a>
+<a href="https://app.kasmweb.com/#/cast/4398794189" target="_blank"><img src="https://5856039.fs1.hubspotusercontent-na1.net/hubfs/5856039/dockerhub/casting-buttons/CoreCUDAJammy.png" width="300" height="104"></a>
 
 &lowast;*This demo links to a Jammy Desktop image to show the basic functionality of Kasm Workspaces.*