Fix JSON field names for vm-configuration and user-data

The JSON field names of the RuntimeClaims are kebab-case, not snake_case.

Signed-off-by: Takuma IMAMURA <[email protected]>

Author: hyperfinitism

articles/confidential-computing/guest-attestation-confidential-virtual-machines-design.md

@@ -125,8 +125,8 @@ The report generated by the hardware (AMD SEV-SNP or Intel TDX). The report_data
 | JSON Field | Description |
 | :--- | :--- |
 | keys | An array of keys in JWK format. Expected `kid`:  `HCLAkPub` (vTPM AK public),  `HCLEkPub` (vTPM EK public). |
-| vm_configuration | Selective Azure confidential VM configuration. |
-| user_data | 64-byte data (HEX string) read from `0x01400002` NV index (Report Data). |
+| vm-configuration | Selective Azure confidential VM configuration. |
+| user-data | 64-byte data (HEX string) read from `0x01400002` NV index (Report Data). |
 
 Example