Add SixtyFPS weekly update

hunger · hunger · commit ccd7532d8187 · 2021-12-13T12:52:02.000+01:00
diff --git a/draft/2021-12-15-this-week-in-rust.md b/draft/2021-12-15-this-week-in-rust.md
@@ -20,6 +20,8 @@ If you find any errors in this week's issue, [please submit a PR](https://github
 
 ### Project/Tooling Updates
 
+* [SixtyFPS (GUI crate): Changelog for 12th of December 2021](https://sixtyfps.io/thisweek/2021-12-13.html)
+
 ### Observations/Thoughts
 
 ### Rust Walkthroughs
