Add a note about VFIO and how to add devices in the containerlab idiom

README.md

@@ -25,13 +25,31 @@ docker build -f Dockerfile.bookworm . -t pimvanpelt/vpp-containerlab
 docker network create --driver=bridge network2 --subnet=172.19.1.0/24
 docker rm clab-pim 
 docker run --cap-add=NET_ADMIN --cap-add=SYS_NICE --cap-add=SYS_PTRACE \
-           --device=/dev/net/tun:/dev/net/tun --device=/dev/vfio/vfio:/dev/vfio/vfio \
+           --device=/dev/net/tun:/dev/net/tun \
            --device=/dev/vhost-net:/dev/vhost-net \
            --privileged=True --name clab-pim \
            docker.io/pimvanpelt/vpp-containerlab
 docker network connect network2 clab-pim
 ```
 
+Note, DPDK will be disabled by default as it requires hugepages and VFIO and/or UIO to use physical
+network cards. If DPDK at some future point is desired, mapping VFIO can be done by adding this:
+```
+           --device=/dev/vfio/vfio:/dev/vfio/vfio
+```
+
+or in Containerlab, using the `devices` feature:
+
+```
+my-node:
+  image: vpp-containerlab:latest
+  kind: vpp
+  devices:
+    - /dev/vfio/vfio
+    - /dev/net/tun
+    - /dev/vhost-net
+```
+
 ## Configuring VPP
 
 ```