Merge pull request #1820 from appleboy/pagination

Fixed #1817 Pagination class error
diff --git a/user_guide_src/source/libraries/pagination.rst b/user_guide_src/source/libraries/pagination.rst
index 7d750bd..00554c1 100644
--- a/user_guide_src/source/libraries/pagination.rst
+++ b/user_guide_src/source/libraries/pagination.rst
@@ -80,7 +80,7 @@
 page number. For example, the number 2 will place two digits on either
 side, as in the example links at the very top of this page.
 
-$config['use_page_number'] = TRUE;
+$config['use_page_numbers'] = TRUE;
 ==================================
 
 By default, the URI segment will use the starting index for the items