Update readme.md

<div align="center">

[![build_img]][build_url]

[![gh_last_release_svg]][dsm-docker-hub]

[![Docker Image Size]][dsm-docker-hub]

[![Docker Pulls Count]][dsm-docker-hub]

[![Build]][build_url]

[![Version]][hub_url]

[![Size]][hub_url]

[![Pulls]][hub_url]

[build_url]: https://github.com/kroese/virtual-dsm/

[dsm-docker-hub]: https://hub.docker.com/r/kroese/virtual-dsm

[hub_url]: https://hub.docker.com/r/kroese/virtual-dsm

[build_img]: https://github.com/kroese/virtual-dsm/actions/workflows/build.yml/badge.svg

[Docker Image Size]: https://img.shields.io/docker/image-size/kroese/virtual-dsm/latest

[Docker Pulls Count]: https://img.shields.io/docker/pulls/kroese/virtual-dsm.svg?style=flat

[gh_last_release_svg]: https://img.shields.io/docker/v/kroese/virtual-dsm?arch=amd64&sort=date

[Build]: https://github.com/kroese/virtual-dsm/actions/workflows/build.yml/badge.svg

[Size]: https://img.shields.io/docker/image-size/kroese/virtual-dsm/latest?color=066da5&label=size

[Pulls]: https://img.shields.io/docker/pulls/kroese/virtual-dsm.svg?style=flat&label=pulls

[Version]: https://img.shields.io/docker/v/kroese/virtual-dsm?arch=amd64&sort=date&color=066da5

</div></h1>

Virtual DSM in a docker container.