Merge pull request #1534 from Darneas/rust-saar-4u16

2020-09-30: Add Rust-Saar Meetup 4u16

Author: nellshamrell

draft/2020-09-30-this-week-in-rust.md

@@ -144,6 +144,7 @@ decision. Express your opinions now.
 ### Online
 * [September 29. Dallas, TX, US - Dallas Rust - Last Tuesday](https://www.meetup.com/Dallas-Rust/events/jqxqwrybcmbmc/)
 * [October 1. Berlin, DE - Berline.rs - Rust Hack and Learn](https://www.meetup.com/opentechschool-berlin/events/txcprrybcnbcb/)
+* [October 13. Saarbrücken, DE - Rust-Saar Meetup - `4u16`](https://www.meetup.com/Rust-Saar/events/273252813/)
 
 ### Asia Pacific
 * [October 5. Auckland, NZ - Rust AKL - Rust meetup](https://www.meetup.com/rust-akl/events/266876708/)