Tutorial title tag sizes decreased.

tutorials/MusicPlaylist.html

@@ -3,13 +3,13 @@
 <script src="./assets/js/audioshowkit.js"></script>
 
 <div class="part">
-    <h1>Creating a Music Playlist</h1>
+    <h2>Creating a Music Playlist</h2>
     <p>
         A music playlist is a list of {@link Music} which maintains metadata about the playlist, such as the length, and the name of the playlist. It also keeps track of an index for a position in the playlist.
     </p>
 </div>
 <div class="part">
-    <h2>Instantiation</h2>
+    <h3>Instantiation</h3>
     <p>Instantiation is simple. We grab a reference to the audioshowkit library from global, and then under the "player" path, we find the music playlist constructor.</p>
     <pre><code class="language-js">
         // Get the entry point to all of AudioShowKit's glory.
@@ -20,7 +20,7 @@
     </code></pre>
 </div>
 <div class="part">
-    <h2>Adding Music</h2>
+    <h3>Adding Music</h3>
     <p>A music playlist is no good if it doesn't have music. Lets add some.</p>
     <pre><code class="language-js">
         // Still using the same context from the instantiation example...
@@ -39,7 +39,7 @@
     </code></pre>
 </div>
 <div class="part">
-    <h2>Display</h2>
+    <h3>Display</h3>
     <p>In the case you want to show the playlist without coding your own display, we provide a simple generator for you!</p>
     <pre><code class="language-js">
         // Still using the same context from the instantiation example...