Add links to upgrade errors

[lc0]

Idea is to create a small page for the most common errors, so users can find some suggested way to go around this issue

/notebooks/9aa78c878d63a515c666342dff10ed47/original.ipynb:115:16: ERROR: Using member tf.contrib.image.rotate in deprecated module tf.contrib. tf.contrib.image.rotate cannot be converted automatically. tf.contrib will not be distributed with TensorFlow 2.0, please consider an alternative in non-contrib TensorFlow, a community-maintained repository, or fork the required code.