Add RSS file

https://en.wikipedia.org/wiki/RSS

https://en.wikipedia.org/wiki/Atom_(web_standard)

When a website is build with WordPress it’s added automatically to my app.

eg.
https://blog.blockstream.com/rss/
https://wizardsardine.com/blog/index.xml
https://blog.trezor.io/feed
https://bitkey.build/rss/
https://blog.casa.io/rss/
http://blog.coinkite.com/feed.xml

(text was made from somone in our telegram group)

So we probably need this for better SEO indexing.

No target file, entry point, or test is named. Start by inspecting the repository structure and the existing website build or content configuration, then compare the linked RSS and Atom examples; done means the site produces the requested feed in a form that can be checked against those examples.

Written by the indexing model from the issue text.