In the new schema the location of the embedded help string has been moved to:
eg. MapSiz.en-ca.doc.xml

<ca:widgetdoc>
  <ca:descriptions>
    <!-- ****************** -->
    <!-- WIDGET EMBBEDDED HELP INFO -->
    <!-- ****************** --> 
    <ca:embeddedhelp title="General User Help">
      <ca:intro>This section holds the string that is desplayed within a
chameleon application when the EmbeddedHelp widget is used.</ca:intro>
      <ca:paras title="MapSize Popup">
        <ca:para>This button provides the capability to modify the size of the
map image. Click the map Size button to open the Map Size dialog. Enter the new
dimensions in pixels and click OK to apply the changes.</ca:para>
      </ca:paras>
    </ca:embeddedhelp>
  </ca:descriptions>
</ca:widgetdoc>

you will notice that you can define multiple titled sections <ca:paras title= />
and you can also define multiple paragraghs within the titled section <ca:para />.

This can provide configurable content. If the user wishes to define Titles and
multiple sections. This could open up other options to allow the user to define
a specific title block based on the mode of the widget or even flavour of the
application. 

This is of course is an enhancement option and so the very least update the path
to first instance of <ca:paras>ca:para />