Update 2025-08-20-this-week-in-rust.md (#6908)

Co-authored-by: Ben Dillon <[email protected]>

Author: CarlKCarlK

draft/2025-08-20-this-week-in-rust.md

@@ -48,6 +48,7 @@ and just ask the editors to select the category.
 
 ### Observations/Thoughts
 
+* [Nine Rules for Generalizing Your Rust Library: Lessons from Extending RangeSetBlaze to Maps (Part 2)](https://medium.com/@carlmkadie/92bb899d47ef)
 * [Lessons learned from rewriting the UltraGraph crate](https://deepcausality.com/blog/lessons-learned-from-rewriting-ultragraph) 
 * [Scientific Computing in Rust](https://ideas.reify.ing/en/blog/scientific-computing-in-rust-with-pytorch/)