qm-config: add page (#9216)

pages/linux/qm-config.md

@@ -0,0 +1,16 @@
+# qm config
+
+> Display the virtual machine configuration with pending configuration changes applied.
+> More information: <https://pve.proxmox.com/pve-docs/qm.1.html>.
+
+- Display the virtual machine configuration:
+
+`qm config {{vm_id}}`
+
+- Display the current configuration values instead of pending values for the virtual machine:
+
+`qm config --current {{true}} {{vm_id}}`
+
+- Fetch the configuration values from the given snapshot:
+
+`qm config --snapshot {{snapshot_name}} {{vm_id}}`