Clarify the comment on the recursion example

More than one example in it now

examples/recursion/recursion.go

@@ -1,6 +1,6 @@
 // Go supports
 // <a href="http://en.wikipedia.org/wiki/Recursion_(computer_science)"><em>recursive functions</em></a>.
-// Here's a classic factorial example.
+// Here's a classic example.
 
 package main
 

examples/recursion/recursion.hash

@@ -1,2 +1,2 @@
-55d9633a4f0fd0eac2f243b2a2ddb35ae91ed4a9
-LnBMavPrkuf
+02b9ee049def729d92a63fa13eddef5ce5358640
+yDJXBAPUR7V

public/recursion

@@ -29,7 +29,7 @@
           <td class="docs">
             <p>Go supports
 <a href="http://en.wikipedia.org/wiki/Recursion_(computer_science)"><em>recursive functions</em></a>.
-Here&rsquo;s a classic factorial example.</p>
+Here&rsquo;s a classic example.</p>
 
           </td>
           <td class="code empty leading">
@@ -43,7 +43,7 @@ Here&rsquo;s a classic factorial example.</p>
             
           </td>
           <td class="code leading">
-            <a href="http://play.golang.org/p/LnBMavPrkuf"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
+            <a href="http://play.golang.org/p/yDJXBAPUR7V"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
           <pre class="chroma"><span class="kn">package</span> <span class="nx">main</span>
 </pre>
           </td>