add header to CHT output, include p-val and chisq stat, fewer decimals in output
add header to CHT output, include p-val and chisq stat, fewer decimals in output

gmcvicker/WASP,smozaffari/WASP,gmcvicker/WASP,cdeboever3/WASP,cdeboever3/WASP,cdeboever3/WASP,smozaffari/WASP,smozaffari/WASP,cdeboever3/WASP,bmvdgeijn/WASP,gmcvicker/WASP,smozaffari/WASP,bmvdgeijn/WASP,smozaffari/WASP,TheFraserLab/Hornet,gmcvicker/WASP,bmvdgeijn/WASP,bmvdgeijn/WASP