test: fix readme

README.md

@@ -60,7 +60,9 @@ Configure network on Debian
 
 ### Test with molecule and docker
 
-* install [docker](https://docs.docker.com/engine/installation/)
+* install libvirt on debian `apt install libvirt-dev qemu-system libvirt-clients libvirt-daemon-system`
+* install [vagrant](https://www.vagrantup.com/docs/installation)
+* install vagrant libvirt plusin `vagrant plugin install vagrant-libvirt`
 * install `python3` and `python3-pip`
 * install molecule and dependencies `pip3 install molecule python-vagrant molecule-vagrant ansible-lint pytest-testinfra yamllint`
 * run `molecule test`