Version 2025.2

Fixing a bunch of issues and typos and small things with 2025.1, which added David Udell and Polyphony Bruna as co-authors, added a new chapter on mechanistic interpretability, and made extensive revisions to the transformer chapter and linear algebra and word embedding chapters. Hundreds of smaller changes made across these two releases.

Full Changelog: v2025.1...v2025.2