small fixes

src/app/main/slide_13.html

@@ -1,6 +1,6 @@
 <div layout-fill layout="column" class="slide slide-13">
     <div flex="10" layout="row" layout-align="center center">
-        <h2>Web 2.0: Cons</h2>
+        <h2>Web 2.0: cons</h2>
     </div>
 
 

src/app/main/slide_5.html

@@ -1,7 +1,7 @@
 
 <div layout="column" layout-padding class="slide slide-5">
 
-    <h4 style="padding-left: 20px"><a href="http://worrydream.com/MagicInk/">Bret Victor: Magic Ink</a></h4>
+    <h4 style="padding-left: 20px; margin-bottom: 0px;"><a href="http://worrydream.com/MagicInk/">Bret Victor: Magic Ink</a></h4>
     <!--Information software-->
     <div class="animated fadeIn" style="position: relative" flex="50" layout="row" layout-align="center center">