Update section titles for clarity in module.html

Author: olivomarco

docs/module.html

@@ -80,8 +80,8 @@ <h1 id="modHeading" style="margin:0">
       <div class="wrap">
         <div class="shead">
           <div>
-            <span class="eyebrow">Tracks</span>
-            <h2 id="tracksHeading" style="margin-top:12px">Learning paths.</h2>
+            <span class="eyebrow">Activity tracks</span>
+            <h2 id="tracksHeading" style="margin-top:12px">Choose a delivery focus.</h2>
           </div>
         </div>
         <div class="track-list reveal" id="trackList">