New section: GAI explainability

[jphall663]

To get us started:

• https://arxiv.org/pdf/2406.19384v1
• https://arxiv.org/pdf/2305.16765
• https://transformer-circuits.pub/2024/scaling-monosemanticity/index.html

This does violate the rule of not tracking papers, but this is a new and important subject. There won't be too many papers, yet.

We should see if these papers have code/python packages and watch for papers that cite them.