message: added link to disk properties for UltraSSD values
diff: "diskIOPSReadWrite": {
  "type":"integer",
  "format": "int64",
  - "description": "The number of IOPS allowed for this disk; only settable for UltraSSD disks. One operation can transfer between 4k and 256k bytes."
  + "description": "The number of IOPS allowed for this disk; only settable for UltraSSD disks. One operation can transfer between 4k and 256k bytes. For a description of the range of values you can set, see [Ultra SSD Managed Disk Offerings](https://docs.microsoft.com/azure/virtual-machines/windows/disks-ultra-ssd#ultra-ssd-managed-disk-offerings)."
  },
  "diskMBpsReadWrite": {
  "type":"integer",
  "format": "int32",
  - "description": "The bandwidth allowed for this disk; only settable for UltraSSD disks. MBps means millions of bytes per second - MB here uses the ISO notation, of powers of 10."
  + "description": "The bandwidth allowed for this disk; only settable for UltraSSD disks. MBps means millions of bytes per second - MB here uses the ISO notation, of powers of 10. For a description of the range of values you can set, see [Ultra SSD Managed Disk Offerings](https://docs.microsoft.com/azure/virtual-machines/windows/disks-ultra-ssd#ultra-ssd-managed-disk-offerings)."
  }
  },
  "required": [
  