RSS <title> modification

Hi there,
Yandex search engine requires special properties to be set for the RSS feed:
<turbo:content>
and
<item turbo="true">

Here is a code they provided as an example:

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:yandex="http://news.yandex.ru"
     xmlns:media="http://search.yahoo.com/mrss/"
     xmlns:turbo="http://turbo.yandex.ru"
     version="2.0">
    <channel>
        <item turbo="true">
            <link>http://www.example.com/page1.html</link>
            <turbo:content>
                <![CDATA[
                    <!-- page content --> 
                ]]>
            </turbo:content>
        </item>
    </channel>
</rss>

Is there a way to set this via maybe JS custom code?

Thank you so much!

My rss feed is here: https://www.visualmethod.ru/blog/rss.xml