add to a list

Author: geumjaLee

interface-elements-for-desktop/articles/rich-text-editor.md

@@ -112,4 +112,5 @@ This section describes the capabilities provided by the **Rich Text Editor**.
 * [Insert a Page Break](rich-text-editor/miscellaneous/insert-a-page-break.md)
 * [Insert Page Numbers](rich-text-editor/miscellaneous/insert-page-numbers.md)
 * [Insert a Symbol](rich-text-editor/miscellaneous/insert-a-symbol.md)
+* [Insert a Watermark](rich-text-editor/miscellaneous/insert-a-watermark.md)
 * [Set Document Properties](rich-text-editor/miscellaneous/set-document-properties.md)