RSS comments element
RSS complete reference manual Definition and Usage
<Comments> element allows a link to the item on the item's comments.
Examples
<?xml version="1.0" encoding="ISO-8859-1" ?>
<rss version="2.0">
<channel>
<title>W3CSchool Home Page</title>
<link>http://www.w3cschool.cc</link>
<description>Free web building tutorials</description>
<item>
<title>RSS Tutorial</title>
<link>http://www.w3cschool.cc/rss</link>
<description>New RSS tutorial on W3CSchool</description>
<comments>http://www.w3cschool.cc/rss/comments.html</comments>
</item>
</channel>
</rss>
<rss version="2.0">
<channel>
<title>W3CSchool Home Page</title>
<link>http://www.w3cschool.cc</link>
<description>Free web building tutorials</description>
<item>
<title>RSS Tutorial</title>
<link>http://www.w3cschool.cc/rss</link>
<description>New RSS tutorial on W3CSchool</description>
<comments>http://www.w3cschool.cc/rss/comments.html</comments>
</item>
</channel>
</rss>
try it"
RSS complete reference manual