Add acks group time of consumer property in Kafka Wrapper doc.
### Motivation
Kafka Wrapper doc minor improvement.
### Modifications
Add acks group time of consumer property in Kafka Wrapper.
@@ -258,5 +258,6 @@ You can configure Pulsar authentication provider directly from the Kafka propert
|:---------------------------------------|:--------|:---------------------------------------------------------------------------------------|
| [`pulsar.consumer.name`](http://pulsar.apache.org/api/client/org/apache/pulsar/client/api/ConsumerConfiguration.html#setConsumerName-java.lang.String-) | | Set the consumer name |
| [`pulsar.consumer.receiver.queue.size`](http://pulsar.apache.org/api/client/org/apache/pulsar/client/api/ConsumerConfiguration.html#setReceiverQueueSize-int-) | 1000 | Set the size of the consumer receiver queue |
+| [`pulsar.consumer.acknowledgments.group.time.millis`](http://pulsar.apache.org/api/client/org/apache/pulsar/client/api/ConsumerBuilder.html#acknowledgmentGroupTime-long-java.util.concurrent.TimeUnit-) | 100 | Set the max amount of group time for consumers to send out the acknowledgments to the broker |
| [`pulsar.consumer.total.receiver.queue.size.across.partitions`](http://pulsar.apache.org/api/client/org/apache/pulsar/client/api/ConsumerConfiguration.html#setMaxTotalReceiverQueueSizeAcrossPartitions-int-) | 50000 | Set the max total receiver queue size across partitions |
