docs(freertos): Modify FreeRTOS HZ configuration help description
Closes
@@ -16,6 +16,8 @@ config FREERTOS_HZ
help
Select the tick rate at which FreeRTOS does pre-emptive context switching.
+ The value must be the divisor of 1000, otherwise it may cause time mistake.
+
config FREERTOS_MAX_HOOK
int "FreeRTOS hook max number"
range 1 16
