Please update the Docker Registry with links and other information from the Readme

[ghostsquad]

When running through the getting started guide online for Ambassador, I found myself trying to find the source of the docker image for this service, and other related information (like tags that correspond to the docker images) in order to identify what I was deploying in my sandbox, and what all I can do with the service (as part of my own demo).

The docker registry was void of any information. This repo additionally doesn't have any tags/releases matching the tags in the Docker Registry.

Additionally, there's this repo: https://github.com/datawire/qotm which I actually thought was the source of the docker image, because the GettingStarted guide does use qotm for the name of the service:

https://www.getambassador.io/docs/edge-stack/latest/tutorials/getting-started/

This is a general request to flesh things out a bit (docs, tags, releases, etc), to help people find the data they are looking for as they attempt to explore the product.

I have another issue: datawire/qotm#13 asking for that repo to be updated & archived.

Thank you for your time!