title: Failed to use Code Prettify plugin
body: <p>I am a newbie in WordPress.</p>
  
  <p>I am trying to insert a code block in Sparkling Theme of Wordpress.
  This is my code in editor:</p>
  
  <pre><code>Following is a snippet of a sample Layout file.
  &lt;pre class="prettyprint"&gt;
  &lt;code class="xml"&gt;
  &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:orientation="vertical" &gt;
  
     &lt;TextView android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This will print hello world" /&gt;
  
     &lt;!-- More GUI components go here  --&gt;
  
  &lt;/LinearLayout&gt;
  &lt;/code&gt;&lt;/pre&gt;
  </code></pre>
  
  <p>And I am getting this as output:
  <a href="https://i.stack.imgur.com/vMdFr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vMdFr.png" alt="Output of above code"></a></p>
  
  <p>Please tell me where i am doing wrong. Thanks in Advance..:)</p>