Update readme.md

Via `docker run`

```bash

$ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-timeout 60 kroese/virtual-dsm:latest

docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-timeout 60 kroese/virtual-dsm:latest

```

## FAQ

  * ### How do I check if my system supports KVM?

    To check if your system supports KVM run these commands:

    ```

    sudo apt install cpu-checker

    sudo kvm-ok

    ```

    If `kvm-ok` returns an error stating KVM acceleration cannot be used, you may need to change your BIOS settings.

  * ### How do I change the size of the virtual disk? ###

    By default it is 16GB, but you can modify the `DISK_SIZE` setting in your compose file:

    Just replace `/home/user/data` with the path to the folder you want to use for storage.

  * ### How do I change the amount of CPU/RAM? ###

    By default an amount of 512MB RAM and 1 vCPU is allocated to the container.

    To increase this you can add the following environment variabeles:

    ```

    environment:

      CPU_CORES: "4"

      RAM_SIZE: "2048M"

    ```

  * ### How do I give the container a dedicated IP address?

    By default the container uses bridge networking, and is reachable by the IP of the docker host. 

    If you want to give it a seperate IP address, create a macvlan network that matches your local subnet:

    If you want to give it a seperate IP address, create a macvlan network that matches your local subnet, for example:

    ```

    $ docker network create -d macvlan \

     --network vlan --ip=192.168.0.100

    ```

    This has the advantage that you don't need to do any portmapping anymore.

  * ### How do I change the amount of CPU/RAM? ###

    By default an amount of 512MB RAM and 1 vCPU is allocated to the container.

    To increase this you can add the following environment variabeles:

    ```

    environment:

      CPU_CORES: "4"

      RAM_SIZE: "2048M"

    ```

    This also has the advantage that you don't need to do any portmapping anymore.

  * ### How do I install a specific version of vDSM? ###