Pagination: Add 'use_global_url_suffix' setting

Resolves issue #1887
diff --git a/user_guide_src/source/libraries/pagination.rst b/user_guide_src/source/libraries/pagination.rst
index 8c5c2c6..d51d0dd 100644
--- a/user_guide_src/source/libraries/pagination.rst
+++ b/user_guide_src/source/libraries/pagination.rst
@@ -131,6 +131,12 @@
 A custom suffix added to the path. The sufix value will be right after
 the offset segment.
 
+**$config['use_global_url_suffix'] = FALSE;**
+
+When set to TRUE, it will **override** the ``$config['suffix']`` value and
+instead set it to the one that you have in ``$config['url_suffix']`` in
+your **application/config/config.php** file.
+
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 Adding Enclosing Markup
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