تعیین یک دسته یا cateory برای فید و عنوان های آن

<channel>
<title>W3Schools Home Page</title>
<link>http://www.w3schools.com</link>
<description>Free web building tutorials</description>
     <category>IT/Internet/Web development</category>
          <item>
<title>RSS Tutorial</title>
<link>http://www.w3schools.com/rss</link >
<description>New RSS tutorial on W3Schools</description>
<category>News</category>
<category>Tutorial</category>
          </item>
</channel>

</rss>

<channel>
<title>W3Schools Home Page</title>
<link>http://www.w3schools.com</link>
<description>Free web building tutorials</description>
<image>
<url>http://www.w3schools.com/rss/w3schoolspic.gif</url >
<title>W3Schools.com</title>
<link>http://www.w3schools.com</link>
</image>
<item>
<title>RSS Tutorial</title>
<link>http://www.w3schools.com/rss</link >
<description>New RSS tutorial on W3Schools</description>
</item>
</channel>

</rss>