fix linter issues in ptp-time-integration
@@ -101,7 +101,7 @@ command:
This command shows whether a MAC supports hardware time stamping. Only devices
that contain below flags are listed as PTP capable device.
-```
+```text
SOF_TIMESTAMPING_TX_HARDWARE
SOF_TIMESTAMPING_RX_HARDWARE
SOF_TIMESTAMPING_RAW_HARDWARE
