release notes typo

Author: shwestrick

release-notes/v0.2.md

@@ -54,7 +54,7 @@ Many of the details are published in our recent POPL'21 paper:
   * (#118) Primitives for GC statistics.
 
 **New examples**
-  * (#102) Raytracer (thanks @athas!)
+  * (#108) Raytracer (thanks @athas!)
   * (#117) N-queens
   * (#122) Digital audio reverb
   * (#123) Seam-carving