Doc typo, instance method instead of class method
Doc typo, instance method instead of class method

The `check_hash_parameter` method is an instance method like `validate_hash`
and not a class method like `validate`, so it should have a `#` notation
instead of `::`.

UKHomeOffice/vcloud-core,gds-operations/vcloud-core,gds-operations/vcloud-core,UKHomeOffice/vcloud-core