correct value of softmax

[greentec]

softmax of [4,2,6] is [0.11731043, 0.01587624, 0.86681333].
python code from https://stackoverflow.com/a/38250088/2689257

def softmax(x):
    """Compute softmax values for each sets of scores in x."""
    e_x = np.exp(x - np.max(x))
    return e_x / e_x.sum(axis=0)