message: Include Python markdown header
diff: @@ -770,8 +770,8 @@ class CategoricalAccuracy(MeanMetricWrapper):
  class SparseCategoricalAccuracy(MeanMetricWrapper):
  """Calculates how often predictions matches integer labels.
  - `acc = np.dot(sample_weight, np.equal(y_true, np.argmax(y_pred, axis=1))`
  -
  + ```python
  + acc = np.dot(sample_weight, np.equal(y_true, np.argmax(y_pred, axis=1))
  You can provide logits of classes as `y_pred`, since argmax of
  logits and probabilities are same.
  