DOCSP-29523: fix skip and limit example (#379)

* DOCSP-29523: Fix the skip and limit example

Author: Chris Cho

source/fundamentals/crud/read-operations/limit.txt

@@ -24,8 +24,8 @@ documents that a read operation can return. If there are not enough documents
 to reach the specified limit, it can return a smaller number.
 If you use ``limit()`` with the ``skip()`` instance method, the skip applies
 first and the limit only applies to the documents left over after
-the skip. For more information on the ``skip()`` method, see our 
-:doc:`guide on Skipping Returned Documents </fundamentals/crud/read-operations/skip/>`. 
+the skip. For more information on the ``skip()`` method, see our
+:doc:`guide on Skipping Returned Documents </fundamentals/crud/read-operations/skip/>`.
 
 The following examples demonstrate, respectively, how to insert data into
 a collection, how to use ``limit()`` to restrict the number of returned documents,
@@ -64,9 +64,13 @@ longest books. It first matches all the documents with the query, then sorts on
 books with shorter lengths. Lastly, it limits the return value to ``3`` documents:
 
 .. code-block:: java
-   :emphasize-lines: 6
+   :emphasize-lines: 10
 
-   import com.mongodb.client.model.Sorts;
+   import com.mongodb.client.*;
+   import org.bson.Document;
+   import static com.mongodb.client.model.Sorts.descending;
+
+   // ...
 
    // define a cursor that will return the first 3 sorted items
    MongoCursor<Document> cursor = collection.find()
@@ -109,14 +113,13 @@ Combining Skip and Limit
 ------------------------
 
 To see the next three longest books, append the ``skip()`` method to your
-``find()`` call. The integer argument passed to ``skip()`` will determine
-how many documents the find operation returns:
+``find()`` call as shown in the following code example:
 
 .. code-block:: java
    :emphasize-lines: 3, 4
 
    MongoCursor<Document> cursor = collection.find()
-       .sort(ascending("length"))
+       .sort(descending("length"))
        .limit(3)
        .skip(3)
        .iterator();