docs: document homelab services, deployment, and repository review

netronome/README.md

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+# Netronome
+
+Network monitoring application using the shared PostgreSQL instance on Kubernetes.
+
+Kubernetes reads application settings from its ConfigMap and Secret. Match the
+Netronome role password with `NETRONOME_DB_PASSWORD` in the shared database Secret.
+Its namespace is included in the PostgreSQL NetworkPolicy.
+
+The Compose configuration is a separate deployment; review its local database
+settings and env example before starting it. Keep monitoring history in the
+database backup.
+
+## Inspect
+
+From the repository root:
+
+```sh
+kubectl get pods,svc,pvc -n netronome
+kubectl get events -n netronome --sort-by=.metadata.creationTimestamp
+```
+
+See the [repository README](../README.md) for deployment selection.