reorganize memory, attention, cognitive load

[karenword]

How could the content be improved?

This suggestion was submitted as #1543 but cannot be merged or edited due to technical difficulties. The improvement to organization suggested by @KwiatkowskiD is as follows:

There are 2 cognitive resources, memory and attention.

Memory - details and how to manage memory
Attention- details and how to manage attention
Overloading either of the creates Cognitive overload.

Cognitive load and discuss strategies to manage cognitive overload.

Which part of the content does your suggestion apply to?

https://carpentries.github.io/instructor-training/05-memory.html