Explanation on how to save is unintuitive
To someone who knows how the code works, this section makes sense what it is saying, but to someone who doesn't, the majority of people who will use this software, it's quite unintuitive and confusing.
Save states are usually a feature in addition to normal sram/flash saving, not the intended way to save. I think the section should be titled something more like "Save states and how to retain cartridge saves" and should be described more like the following:
Save states are not just an additional feature of this emulator, and are actually required in order to retain a normal cartridge save too. Press down C to save a save state. When you load a cartridge only a part of a saved state is loaded that corresponds to the cartridges normal save data if it supports saving. You can also load the whole saved state by holding up C.
Essentially put the important part that is at the end near the beginning, and indicating clearly that save states are required for normal saves too.