Add Drop for Safety post to 2024-12-18-this-week-in-rust.md

Author: chriskrycho

draft/2024-12-18-this-week-in-rust.md

@@ -41,6 +41,8 @@ and just ask the editors to select the category.
 
 ### Rust Walkthroughs
 
+- [Read the Code: Using Drop for Safety in Rust](https://v5.chriskrycho.com/journal/read-the-code/using-drop-for-safety-in-rust/)
+
 ### Research
 
 ### Miscellaneous