DOCS-1602: Add an example to moveChunk

source/reference/command/moveChunk.txt

@@ -12,20 +12,35 @@ Definition
    Internal administrative command. Moves :term:`chunks <chunk>` between
    :term:`shards <shard>`. Issue the :dbcommand:`moveChunk` command via
    a :program:`mongos` instance while using the :term:`admin database`.
-   Use the following form:
+   Use the following forms:
 
    .. code-block:: javascript
 
       db.runCommand( { moveChunk : <namespace> ,
-                       find|bounds : <query|array> ,
+                       find : <query> ,
                        to : <string>,
-                       _secondaryThrottle : <Boolean> } )
+                       _secondaryThrottle : <boolean> } )
 
+   Alternately:
+
+   .. code-block:: javascript
+
+      db.runCommand( { moveChunk : <namespace> ,
+                       bounds : <array> ,
+                       to : <string>,
+                       _secondaryThrottle : <boolean> } )
 
    The :dbcommand:`moveChunk` command has the following fields:
 
    .. include:: /reference/command/moveChunk-field.rst
 
+   The value of ``bounds`` takes the form:
+
+   .. code-block:: javascript
+
+      [ { hashedField : <minValue> } ,
+        { hashedField : <maxValue> } ]
+
    The :ref:`chunk migration <sharding-chunk-migration>` section
    describes how chunks move between shards on MongoDB.