high res. image example, keycard exercise

ws/Docbook/Extensions/Tdata/Components/intro.xml

 <?xml version="1.0" encoding="UTF-8"?>
-<chapter annotations="slide" version="5.1" xml:id="intro" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns2="http://docbook.org/ns/docbook" xmlns:ns="http://docbook.org/ns/transclusion" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:html="http://www.w3.org/1999/xhtml">
+<chapter annotations="slide" version="5.1" xml:id="intro"
+         xmlns="http://docbook.org/ns/docbook"
+         xmlns:xlink="http://www.w3.org/1999/xlink"
+         xmlns:xi="http://www.w3.org/2001/XInclude"
+         xmlns:svg="http://www.w3.org/2000/svg"
+         xmlns:ns2="http://docbook.org/ns/docbook"
+         xmlns:ns="http://docbook.org/ns/transclusion"
+         xmlns:m="http://www.w3.org/1998/Math/MathML"
+         xmlns:html="http://www.w3.org/1999/xhtml">
   <title>Introduction</title>
 
   <para>Some MathML:</para>
@@ -140,7 +148,8 @@
     </imageobject>
   </mediaobject>
 
-  <para>What about <acronym xlink:href="http://www.w3.org/TR/SVG">SVG</acronym>?</para>
+  <para>What about <acronym
+  xlink:href="http://www.w3.org/TR/SVG">SVG</acronym>?</para>
 
   <mediaobject>
     <imageobject>
@@ -168,5 +177,11 @@
     </mediaobject>
   </figure>
 
+  <mediaobject>
+    <imageobject>
+      <imagedata fileref="Ref/Fig/keycard.jpg" scale="25"/>
+    </imageobject>
+  </mediaobject>
+
   <para>This is a cross reference to <xref linkend="slideCallouts"/>.</para>
 </chapter>