In order to add documents to the feed, you need to go to Administration >> Settings >> Publishing >> Types,
Create new with this name:
And for assembly name you can enter again:
This will include the documents titles in the feed. This is because only the title of the document item is indexed by the feed, not the binary data (actual text). This is why the Documents aren't included by default in the feeds content type. If you want the feed to index binary data, you will have to implement a custom pipe that does this. Information on how to do this you can find here:
Another approach is to create a new List Item (with rss feed) along with document publishing, where you could add more information about the published document.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal
and vote to affect the priority of the items