Add info and link about flow debugger

tutorialLargeMessaging/en/steps.html

@@ -272,6 +272,9 @@ <h4>Follow these steps to complete the tutorial</h4>
 								<p> The input data has been split into 10 messages propagated to the Out terminal of the JavaCompute node named ProduceMessageSlicesFromRepeatingElement. You can double-click on the JavaCompute node to view the Java code that is executed to process the input message. </p>
 
 
+								<p> To observe how the Java code works on the message tree, you can step through the code by using the Flow debugger while the flow processes the input message. You should observe that elements which have already been processed are freed from memory. </p>
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 								<p> To stop recording the message path through the flow, click the Return flow to edit mode icon <img src="http://ot4i.github.io/ot4i.tutorials/dist/images/icons/iib/stopFlowExerciser.png" alt="Return flow to edit mode">. </p>
 
 
@@ -296,6 +299,11 @@ <h4>Find out more</h4>
 								<li> <a href="javascript:;" onclick="openHelpSystem('/com.ibm.etools.mft.doc/rt26110_.htm')" title="Knowledge Center link to Testing your message flow by using the Flow exerciser">Testing your message flow by using the Flow exerciser</a> </li>
 
 
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+								<li> <a href="javascript:;" onclick="openHelpSystem('/com.ibm.etools.mft.doc/ag11080_.htm')" title="Knowledge Center link to Testing your message flow by using the Flow debugger">Testing your message flow by using the Flow debugger</a> </li>
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