Release Draft Invalid links

[rickimoore]

When making a new release, the links provided in the release checklist lead to invalid docker endpoints. They should point to the latest and current version of the docker build. Example below:

Someone with appropriate access rights should run these commands:
0. sanity check: did the docker workflow complete correctly, are the images published under the sigmaprime namespace?
see: https://hub.docker.com/r//siren/tags?name=v3.0.1 and https://hub.docker.com/r//siren/tags?name=latest

1. publish latest:
   docker manifest create sigp/siren:latest --amend sigmaprime/siren:latest-amd64 --amend sigmaprime/siren:latest-arm64
docker manifest push sigp/siren:latest
2. publish v3.0.1:
   docker manifest create sigp/siren:v3.0.1 --amend sigmaprime/siren:v3.0.1-amd64 --amend sigmaprime/siren:v3.0.1-arm64
docker manifest push sigp/siren:v3.0.1
3. verify: https://hub.docker.com/r/siren/siren/tags?name=v3.0.1 and https://hub.docker.com/r/sigp/siren/tags?name=latest