add link to awkward GAN NB

notebooks/generative_adversarial_network.ipynb

@@ -1550,7 +1550,7 @@
     "\n",
     "Discrepancy between trainable weights and collected trainable weights, did you set `model.trainable` without calling `model.compile` after ?\n",
     "\n",
-    "_This warning can be safely ignored. In most neural networks, you should indeed ensure that you compile the model after adjusting whether the models weights are trainable or not. In a GAN, however, this is unnecessary: The discriminator need not be compiled after making its weights untrainable; instead, we compile these untrainable weights as a part of the adversarial model. You can read more about this unnecessary warning [here](https://github.com/keras-team/keras/issues/8585) and [here](https://github.com/tensorflow/tensorflow/issues/22012)._"
+    "_This warning can be safely ignored. In most neural networks, you should indeed ensure that you compile the model after adjusting whether the models weights are trainable or not. In a GAN, however, this is unnecessary: The discriminator need not be compiled after making its weights untrainable; instead, we compile these untrainable weights as a part of the adversarial model. You can read more about this unnecessary warning [here](https://github.com/keras-team/keras/issues/8585) and [here](https://github.com/tensorflow/tensorflow/issues/22012). If the warning **really** bothers you though, we created a GAN notebook with an awkward workaround [here](https://github.com/the-deep-learners/deep-learning-illustrated/blob/master/notebooks/awkward-GAN-with-no-warning.ipynb)._"
    ]
   },
   {