added pdf to index

index.html

@@ -360,8 +360,8 @@
     </div>
     <div class='subrow'>
     <p class='subcl1'>Joca van der Horst</p>
-    <p class='subcl2'><a href='smart-speaker-theatre/index.html' target="_blank" class='ext'>Smart Speaker Theatre</a></p>
-    <p class='subcl3'><!--a href='test.pdf' target="_blank" class='ext'>PDF</a> // <a href='#2018-att3' class='int'>IMG</a--></p>
+	<p class='subcl2'><a href='smart-speaker-theatre/index.html' target="_blank" class='ext'>Smart Speaker Theatre</a></p>
+    <p class='subcl3'><a href='smart-speaker-theatre/pdf/ghost_in_the_speaker.pdf' target="_blank" class='ext'>PDF</a></p>
     </div>
     <div class='subrow'>
     <p class='subcl1'>Alexander Roidl</p>