Fix the scrolling example code error

Signed-off-by: r6hk <[email protected]>

Author: r6hk

src/main/antora/modules/ROOT/pages/repositories/scrolling.adoc

@@ -11,15 +11,15 @@ Similar to consuming a Java `Iterator<List<…>>` by obtaining the next batch of
 
 [source,java]
 ----
-Window<User> users = repository.findFirst10ByLastnameOrderByFirstname("Doe", ScrollPosition.offset());
+ScrollPosition position = ScrollPosition.offset();
+Window<User> users;
 do {
-
-  for (User u : users) {
-    // consume the user
-  }
-
-  // obtain the next Scroll
-  users = repository.findFirst10ByLastnameOrderByFirstname("Doe", users.positionAt(users.size() - 1));
+    users = repository.findFirst10ByLastnameOrderByFirstname("Doe", position);
+    for (User u : users) {
+        // consume the user
+    }
+    // update the position
+    position = users.positionAt(users.size() - 1);
 } while (!users.isEmpty() && users.hasNext());
 ----