Update the README

README.md

@@ -24,6 +24,14 @@ and on the Mirantis
 
 To begin following the build process for this code, clone this repository in your local environment:
 
+## To use with Kubernetes
+
+The default network plugin for `cri-dockerd` is set to `kubenet` on Linux. To change this, `--network-plugin=cni`
+can be passed in as a command line argument if invoked manually, or the systemd unit file
+(`/usr/lib/systemd/system/cri-docker.service` if not enabled yet,
+or `/etc/systemd/system/multi-user.target.wants/cri-docker.service` as a symlink if it is enabled) should be
+edited to add this argument, followed by `systemctl daemon-reload` and restarting the service (if running)
+
 ```shell
 git clone https://github.com/Mirantis/cri-dockerd.git
 ```