The information is wrong about switching octaves.
From the info:
Notes can be shifted up or down octaves. ' shifts the following note up 1 octave, " shifts the following note up 2 octaves, and ` shifts the following note down an octave.
e.g.
0-3-'0-'3-"0-'"0-`0-``0-
But these characters shift by the period, which is not necessarily the octave. So they shift by 3/2 in this example:
{1/1 9/8 5/4 4/3 3/2'}
`4 4 '4 "4
I suggest this: Change the text to something like “' shifts the following note up 1 equave (defaults to 2/1)” & c.. But Changing the equave hasn't been introduced yet, so maybe it would be better to add this information to the section about scales, maybe like this:
Scales comprised of individual pitches can also set their equave size using ' after the last pitch. Defaults to 2/1. The symbols for shifting octaves now shift the present equaves.