Fix markdown table in bare-metal reference
@@ -129,7 +129,7 @@ os_version = var.custom_default_os_version
## Attribute reference
| Argument | Description | Default | Type | Required |
-|-----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--:-:-------------|--:-:---------|--:-:-----|
+|---------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|--------------|----------|
| `asset_dir` | Location where Lokomotive stores cluster assets. | - | string | true |
| `cached_install` | Whether the operating system should PXE boot and install from matchbox /assets cache. Note that the admin must have downloaded the `os_version` into matchbox assets. | "false" | string | false |
| `cluster_name` | Name of the cluster. | - | string | true |
