The word "content" in the description of these features is too vague ("Lists are a way to save a collection of content on a specific topic or for a specific purpose. The cart is a session specific storage space.") I propose : "Lists are a way to save a collection of bibliographic records on a specific topic or for a specific purpose. The cart is a session specific storage space for bibliographic records."
Tip: you can create a bug directly with the "Needs documenting" status (as well as the Documentation component) https://wiki.koha-community.org/wiki/Editing_the_Koha_Manual#Reporting_problems_with_the_manual And if you're planning to deal with the bug you report straightaway, you could also add your name to "Documentation contact" ;-)