What's a go-to introductory article for those who've never heard of RSS?

Several are listed here:

https://github.com/AboutRSS/ALL-about-RSS#a-webpage-in-engli...

For anyone who ends up finding this post in the future: I didn't find an existing article to send to friends and family, so I wrote one:

https://www.autodidacts.io/what-is-rss/