Newsletter 23: Add usnake release

Author: arosspope

content/2020-01-30-newsletter-23.md

@@ -51,6 +51,8 @@ If you want to mention something in [the next newsletter], send us a pull reques
 
 - Steven Walter gave a talk at [Rust Belt Rust][rust-belt-rust] about [introducing Rust into an existing embedded Linux project][introducing-rust-into-legacy].
 
+- [@arosspope](https://github.com/arosspope) released an implementation of [the game snake for the stm32f3 discovery board](https://github.com/arosspope/usnake) using RTFM.
+
 [Porting druid Rust Widgets to PineTime Smart Watch]: https://medium.com/@ly.lee/porting-druid-rust-widgets-to-pinetime-smart-watch-7e1d5a5d977a
 [Optimising PineTime’s Display Driver with Rust and Mynewt]: https://medium.com/@ly.lee/optimising-pinetimes-display-driver-with-rust-and-mynewt-3ba269ea2f5c
 [The Raspberry Pi OS dev tutorial]: https://github.com/rust-embedded/rust-raspi3-OS-tutorials/tree/master/13_integrated_testing