Create 1.ai_history_references.md

[jwu-eng]

Update Chapter 1 with new content

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Note

Low Risk
Documentation-only addition with no runtime, auth, or data-handling changes.

Overview
Adds chapter_1/1.ai_history_references.md, a new optional Chapter 1 page that frames how modern AI agents evolved and points readers to further reading.

The page groups annotated links into four sections: foundational LLM/agent papers (Transformer through ReAct and DeepSeek-R1), AI agents in science (including FutureHouse work and external systems like Co-Scientist and Biomni), third-party perspectives (videos and reading lists), and supplementary LLM/deep learning resources. Intro copy positions the page as background and directs readers who want hands-on material to Chapter 2.

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