add(commands): add better text

docs/operate/cli/reference/debug.md

@@ -1,6 +1,6 @@
 # debug command
 
-The kubectl debug command allows you to troubleshoot workloads running on the NAIS platform. This command creates a
+The debug command allows you to troubleshoot workloads running on the NAIS platform.This command creates a
 debug pod within the same namespace as the target workload and connects it to the same network. There are two options
 for debugging a workload: you can either create a container within the same pod as the workload or create a separate pod
 in the same namespace as the workload, with the latter option providing
@@ -11,6 +11,16 @@ a [shared namespace](https://kubernetes.io/docs/tasks/configure-pod-container/sh
 Creates a debug pod in the same namespace as the target workload. This command will create a debug pod in the same
 namespace as the target workload and connect it to the same network.
 
+`nais debug app` creates a debug container in the "live" pod, meaning it’s not a copy of the original pod. If you exit
+this command with `exit`, you cannot reconnect or attach again, because the debug container is terminated. To
+reconnect, simply run `nais debug app` again, this will create a new debug container in the same pod. See
+`naist debug tidy` to clean up the pod you just debugged.
+
+`nais debug app --copy app` creates a copy of the original pod in the same namespace. This is useful if you want to
+debug the pod without affecting the live pod, useful for debugging production workloads.
+If you exit this command with `exit`, you can reconnect or attach again by
+running `nais debug app --copy app` again. See `nais debug tidy` to clean up the pod you just debugged.
+
 ```bash
 nais debug app
 ```