Chapter 14 - typo at page 460 #97

Hello,

I have discovered a little typo: "For example, a rank 3 placeholder of type float and shape 3x4x5 can be defined as: tf.placeholder(type=tf.float32, shape=[2, 3, 4])".

It should be:

"For example, a rank 3 placeholder of type float and shape 2x3x4 can be defined as: tf.placeholder(type=tf.float32, shape=[2, 3, 4])"

or

"For example, a rank 3 placeholder of type float and shape 3x4x5 can be defined as: tf.placeholder(type=tf.float32, shape=[3, 4, 5])"

Thank you!