update readme

demo/index.html

@@ -145,7 +145,7 @@
  <li><a href="level-offset.html" target="_blank">position node in specific level</a></li>
  <li><a href="nodes-of-different-widths.html" target="_blank">nodes of different widths</a></li>
  <li><a href="drag-drop-hybrid-chart.html" target="_blank">drag&drop in hybrid chart</a></li>
- <li><a href="data-prop-hybrid.html" target="_blank">create hybrid chart with data prop hybrid</a></li>
+ <li><a href="data-prop-hybrid.html" target="_blank">create hybrid chart with data prop "hybrid"</a></li>
  <li><a href="custom-icons.html" target="_blank">use fontawesome icons instead of built-in icons</a></li>
  <li><a href="data-prop-compact.html" target="_blank">layout for children which is too many</a></li>
  </ol>