diff --git a/README.md b/README.md
index b595ce6..f051fdc 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ MDLinks is a static HTML page with JS markdown parser. It creates a link portal
 
 * config.js
     * File is read to replace values in "config.xx" object.
+    * config.source='path_to_markdown.txt';
     * config.style='path_to_style.css';
     * config.title='Title of page';
     * config.columns=[integer];  // Split heads to this many columns