1 files changed, 5 insertions, 1 deletions
diff --git a/README.org b/README.org
index 2c63ba6..af70225 100644
--- a/README.org
+++ b/README.org
@@ -16,7 +16,9 @@ called as follows.
 
 #+begin_src emacs-lisp :eval no :exports code
   (ilist-string LIST COLUMNS GROUPS
-      &optional DISCARD-EMPTY-P SORTER NO-TRAILING-SPACE)
+                &optional
+                DISCARD-EMPTY-P SORTER NO-TRAILING-SPACE
+                SHOW-ITEM-NUM-P)
 #+end_src
 
 - LIST is the list that the user wants to display
@@ -29,6 +31,8 @@ called as follows.
   groups.
 - NO-TRAILING-SPACE is non-nil if there should be no trailing
   whitespaces in the resulting string.
+- SHOW-ITEM-NUM-P determines whether to display the number of items in
+  each group's header.
 
 ** Columns