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Update NOW.md

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@ -77,7 +77,7 @@ Once instances of *SpanPoint* are created, the following methods can be used to
* checks to see if a message has been received into SpanPoint's internal queue from a device with the *macAddress* specified when the relevant SpanPoint object was instantiated. If so, the message is copied into the memory pointed to by *dataBuf*, the internal queue is cleared, and the method returns **true**. If no message is available, the *dataBuf* memory is unmodified and the method returns **false**
* note that the pointer *dataBuf* should always reference a data element or structure whose size equals or exceeds the *receiveSize* parameter specified when the relevant SpanPoint object was instantiated
* once the internal SpanPoint queue is full, any messages received from the same device are discarded until the queue is cleared by calling this *get()* method. Setting the optional *queueDepth* parameter to a number greater than one when the relevant SpanPoint object was instantiated allows SpanPoint to retain up to *queueDepth* messages even without a call to the this *get()* method. However, once the queue is full, additional messages received will be discarded until messages are "gotten" of the queue with the *get()* method
* once the internal SpanPoint queue is full, any messages received from the same device are discarded until the queue is cleared by calling this *get()* method. Setting the optional *queueDepth* parameter to a number greater than one when the relevant SpanPoint object was instantiated allows SpanPoint to retain up to *queueDepth* messages even without a call to the *get()* method. However, once the queue is full, additional messages received will be discarded until messages are "gotten" off the queue with the *get()* method