Update description to correctly show OperationOutcome as the result

Author: simonstead

specification/validated-relationships-service-api.yaml

@@ -485,8 +485,8 @@ paths:
         ## Sandbox test scenarios
         | Scenario | Request | Response |
         | -------- | ------- | -------- |
-        | Successful parent-child proxy creation | Valid request with parental relationship and birth certificate evidence | HTTP Status 201 and Bundle containing created Consent resource |
-        | Successful adult-adult proxy creation | Valid request with appropriate relationship and evidence | HTTP Status 201 and Bundle containing created Consent resource |
+        | Successful parent-child proxy creation | Valid request with parental relationship and birth certificate evidence | HTTP Status 201 and OperationOutcome response |
+        | Successful adult-adult proxy creation | Valid request with appropriate relationship and evidence | HTTP Status 201 and OperationOutcome response |
         | Invalid performer NHS number | Request with invalid NHS number format | HTTP Status 400 and INVALID_NHS_NUMBER error response |
         | Missing required evidence | Request without evidence of responsibility | HTTP Status 422 and MISSING_EVIDENCE error response |
         | Invalid access level | Request with undefined access level code | HTTP Status 400 and INVALID_ACCESS_LEVEL error response |