added some references

output/keynote/categories.html

@@ -69,8 +69,9 @@
 <section class="slide">
 <div style="text-align:center; position:absolute; top: 2em; font-size: .9em; width: 100%">
 <h1 style="position: relative;">Category Theory <span class="and">&amp;</span> Programming</h1>
-<author><em class="base01">by</em> Yann Esposito</author>
+<div><em class="base01">for</em> <a href="http://www.meetup.com/riviera-scala-clojure">Rivieria Scala Clojure</a> (Note this presentation uses Haskell)</div>
-<div style="font-size:.5em">
+<author><em class="base01">by</em> <a href="http://yannesposito.com">Yann Esposito</a></author>
+<div style="font-size:.8em">
     <twitter>
         <a href="http://twitter.com/yogsototh">@yogsototh</a>,
      </twitter>
@@ -80,7 +81,7 @@
 </div>
 <div class="base01" style="font-size: .5em; font-weight: 400; font-variant:italic">
     <div class="button" style="margin: .5em auto;border: solid 2px; padding: 5px; width: 8em; border-radius: 1em; background:rgba(255,255,255,0.05);"  onclick="javascript:gofullscreen();">ENTER FULLSCREEN</div>
-    HTML presentation: use arrows, space to navigate.
+    HTML presentation: use arrows, space, swipe to navigate.
 </div>
 </div>
 </section>
@@ -1077,5 +1078,44 @@ depth = cata phi where
 <script>
     hljs.initHighlightingOnLoad();
 </script>
+<script>
+// --- Google analytics ---
+function analytics() {
+        // add an event to all link for google analytics
+        $('a').click(function () {
+            // tell analytics to save event
+            try {
+                var identifier=$(this).attr('id') ;
+                var href=$(this).attr('href')
+                var label="";
+                if ( typeof( identifier ) != 'undefined' ) {
+                    label=label+'[id]:'+identifier
+                    category='JSLink'
+                }
+                if ( typeof( href ) != 'undefined' ) {
+                    label=label+' [href]:'+href
+                    if ( href[0] == '#' ) {
+                        category='Anchor';
+                    } else {
+                        category='Link';
+                    }
+                }
+                _gaq.push(['_trackEvent', category, 'clicked', label]);
+                // console.log('[tracked]: ' + category + ' ; clicked ; ' + label );
+            }
+            catch (err) {
+                console.log(err);
+            }
+
+            // pause to allow google script to run
+            var date = new Date();
+            var curDate = null;
+            do {
+                curDate = new Date();
+            } while(curDate-date < 300);
+        });
+}
+$(document).ready(function(){ analytics(); });
+</script>
 </body>
 </html>