Movig exception basics graphic

Doc/Sd1/errorHandling.xml

@@ -10,8 +10,9 @@
   <title>Error Handling</title>
 
   <section xml:id="sw1SectionErrorHandling">
-    <title/>
+    <title>Preparations</title>
 
-    <para/>
+    <para>Some slides on <link xlink:href="Ref/Svg/exception.svg">exception
+    basics</link>.</para>
   </section>
 </chapter>

Doc/Sd1/streams.xml

@@ -23,8 +23,9 @@
       </listitem>
 
       <listitem>
-        <para><link xlink:href="Ref/Svg/exception.svg">Exception
-        basics</link>.</para>
+        <para><link xlink:href="Ref/Svg/exception.svg">Exception basics</link>
+        already being discussed in <xref
+        linkend="sw1SectionErrorHandling"/>.</para>
       </listitem>
     </itemizedlist>
   </section>