message: Update pooling.py
  Updated the shape and value of the resultant tensor.
diff: @@ -368,13 +368,9 @@ class MaxPooling2D(Pooling2D):
  >>> max_pool_2d = tf.keras.layers.MaxPooling2D(pool_size=(2, 2),
  ... strides=(2, 2), padding='valid')
  >>> max_pool_2d(x)
  - <tf.Tensor: shape=(1, 2, 3, 1), dtype=float32, numpy=
  + <tf.Tensor: shape=(1, 1, 2, 1), dtype=float32, numpy=
  array([[[[6.],
  - [ 7.],
  - [ 8.]],
  - [[10.],
  - [11.],
  - [12.]]]], dtype=float32)>
  + [8.]]]], dtype=float32)>
  Usage Example:
  