link does not exist

[TillHae]

The link under the 9th cell in Demonstrate the use of preprocessing layers in the notebooks training-data-analyst/courses/machine_learning/deepdive2/introduction_to_tensorflow/labs/preprocessing_layers.ipynb and training-data-analyst/courses/machine_learning/deepdive2/introduction_to_tensorflow/solutions/preprocessing_layers.ipynb links to https://www.tensorflow.org/api_docs/python/tf/keras/layers/experimental/preprocessing, which is an invalid page.