Add this note in the code (possibly in usage for the Async Temp read)

[nitin710]

Add details about this in the code

Reading the register clears the bit. This means that it should be enforced in code that, whenever this bit is read(to detect an available temp measurement), the temp. measurement registers should be read immediately after. If the bit checking and temp. reading is not sequential, we may end up in a race-around condition.