This file is now stored in IPFS via the Fission Web API, and is served up by an IPFS gateway of your choice.
That image screenshot up there is being served up by
ipfs.runfission.com, and of course can be loaded up from any IPFS gateway, like:
Install & test in your own discourse:
The README in the Github repo has full instructions for installing and testing in your own Discourse.
Comment here and/or file issues if you have any difficulties.