Update homework due date from April 22 to April 24

Author: alanedelman

18.337 2026 hw4.md

@@ -1,6 +1,6 @@
 # 18.337 2026
 ## Homework 4
-### Due April 22, 2026
+### Due April 24, 2026
 
 Please submit a PDF of your answers on canvas along with your codes.  Use of
 AI  is allowed, perhaps encouraged (even for generating code, really!),