[COSE212] Update lec15

Author: jhnaldo

_data/course/cose212/2025_2.yml

@@ -122,11 +122,11 @@ parts:
     - index: 15
       date: 10/29
       title: Continuations (2)
-      # pdf: slides/lec15.pdf
-      # handout: slides/lec15-handout.pdf
+      pdf: slides/lec15.pdf
+      handout: slides/lec15-handout.pdf
       homework:
         - name: ex09
-          # link: https://github.com/ku-plrg-classroom/docs/tree/main/cose212/fae-cps
+          link: https://github.com/ku-plrg-classroom/docs/tree/main/cose212/fae-cps
     - index: 16
       date: 11/03
       title: First-Class Continuations