Just so a search can pick this up. The example in the docs is incomplete.
To use multiline text \n adds in a new line
eg:
before setup
ofTrueTypeFont myfont;
in setup
myfont.loadFont("arial.ttf", 12);
in draw
myfont.drawString(" this is the first line \n this is the middle line \n of three lines in one statement", 300,300);
