beautify JSON example, so it passes test #463
beautify JSON example, so it passes test #463

tgvaughan/beast2,CompEvol/beast2,CompEvol/beast2,Anaphory/beast2,tgvaughan/beast2,Anaphory/beast2,tgvaughan/beast2,tgvaughan/beast2,Anaphory/beast2,CompEvol/beast2,Anaphory/beast2,CompEvol/beast2