( this was totally here the entire time. )
static if(one) blah;
else static if(two) blah2;
else static if(three) blah3;
Page 20, line under 2.3.3 and Syntax (In the PDF version.)
Line 351, in the tex.
It's a little bit pedantic, but this is a tutorial.
I'd say simply changing that the word 'two' to 'different'.
I'll create a pull request if someone'll give me the go ahead.