Push documentation to Docker Hub

### Describe the feature

When moving the building of Docker images from Docker Hub to this Github repo the automatic update of the README on Docker Hub will no longer work. There is currently no official support to automate this from either Docker Hub or GitHub but there are third party actions that could be used, e.g. [actions/docker-hub-description](https://github.com/marketplace/actions/docker-hub-description)

Investigate if a third party action could be used and if so implement the usage.
Also look into if the documentation could be generated to e.g. as is done for the Docker Official Images https://github.com/docker-library/docs

### Added value

The documentation on Docker Hub will be up to date.