If you want to put the RSS validated button on the site follow the directions the above link gives you.
Thank you again. I see RSS (Entries, Comments) on the left side of the page, but when I click them it displays the XML file.
That only happens in Chrome as it does not come with a reader. You can add one as an extension, chrome-extension://pnjaodmkngahhkoihejjehlcdlnohgmp/options/options.html?page=main&run=highlightSyncSettings&
All of the other browsers come with a reader.