Hi, George!
Thanks for using The Events Calendar, I can help you with this.
It looks like you did a great job with the KB article! The article does mention a few things to be aware of under “A Couple Notes” and “Wrapping Up” sections.
I think the links https://codex.wordpress.org/WordPress_Feeds and https://digwp.com/2012/10/customizing-wordpress-feeds/ might be particularly helpful. Additionally, I found some semi-related information in the WordPress StackExchange that might get you going in the right direction.
I hope this helps, let me know how it goes!
Cheers,
Trisha