more links, style fixes

- Move link to Observations
- Add newlines
- Strip site name from post title
- Add 4 more links, including 3 official Rust posts

Author: ericseppanen

draft/2025-09-24-this-week-in-rust.md

@@ -38,19 +38,25 @@ and just ask the editors to select the category.
 -->
 
 ### Official
+* [Announcing Rust 1.90.0 | Rust Blog](https://blog.rust-lang.org/2025/09/18/Rust-1.90.0/)
+* [Variadic Generics Micro Survey](https://blog.rust-lang.org/inside-rust/2025/09/22/variadic-generics-micro-survey/)
+* [Leadership Council September 2025 Representative Selections](https://blog.rust-lang.org/inside-rust/2025/09/23/leadership-council-repr-selection/)
 * [crates.io: Malicious crates faster_log and async_println](https://blog.rust-lang.org/2025/09/24/crates.io-malicious-crates-fasterlog-and-asyncprintln/)
+
 ### Foundation
 
 ### Newsletters
 
 ### Project/Tooling Updates
 * [Temporal_rs is here! The datetime library powering Temporal in Boa and V8 ](https://boajs.dev/blog/2025/09/24/temporal-release)
+* [Wild Linker Update - 0.6.0](https://davidlattimore.github.io/posts/2025/09/23/wild-update-0.6.0.html)
+
 ### Observations/Thoughts
+* [Why Rust?](https://roland.fly.dev/posts/why-rust/)
 
 ### Rust Walkthroughs
-* [Why Rust?](https://roland.fly.dev/posts/why-rust/)
 * [Rust unit testing: builtin tools](https://jorgeortiz.dev/posts/rust_unit_testing_tools_builtin/)
-* [From Rust to Reality: The Hidden Journey of fetch_max | QuestDB](https://questdb.com/blog/rust-fetch-max-compiler-journey/)
+* [From Rust to Reality: The Hidden Journey of fetch_max](https://questdb.com/blog/rust-fetch-max-compiler-journey/)
 * [Reducing binary size of (Rust) programs with debuginfo](https://kobzol.github.io/rust/2025/09/22/reducing-binary-size-of-rust-programs-with-debuginfo.html)
 * [video] [chatting about rust/concurrency](https://www.youtube.com/live/kJnrbbtYfhI?si=9T62OcP3DbpaR4B6)
 * [video] [Intro to micro:bit and Embedded Rust](https://www.youtube.com/watch?v=IjlbuPZTluU)