Document how to use systemd-run
It is also useful when testing local changes, I just run:
sudo systemd-run -p Delegate=yes -p KillMode=process bin/containerd
@@ -69,6 +69,10 @@ This is not what we want.
As ops, we want to be able to upgrade containerd and allow existing containers to keep running without interruption.
Setting `KillMode` to `process` ensures that systemd only kills the containerd daemon and not any child processes such as the shims and containers.
+The following `systemd-run` command starts containerd in a similar way:
+```
+sudo systemd-run -p Delegate=yes -p KillMode=process /usr/local/bin/containerd
+```
## Base Configuration
