Update training.py
Based on a request from [this issue](https://github.com/keras-team/keras/issues/15185), added a link to the guide on masking.
@@ -437,8 +437,9 @@ class Model(base_layer.Layer, version_utils.ModelVersionSelector):
inputs: Input tensor, or dict/list/tuple of input tensors.
training: Boolean or boolean scalar tensor, indicating whether to run
the `Network` in training mode or inference mode.
- mask: A mask or list of masks. A mask can be
- either a tensor or None (no mask).
+ mask: A mask or list of masks. A mask can be either a tensor or
+ None (no mask). For more details, check the guide
+ [here](https://www.tensorflow.org/guide/keras/masking_and_padding)
Returns:
A tensor if there is a single output, or
