docs(dn): Simon Hu (10/19/25) (#417)

Author: 1fHu

src/design_notebooks/2025fall/yh4970.md

@@ -1,5 +1,10 @@
 # Simon Hu - Design Notebook (Fall 2025)
 
+
+## Week 6
+- Learning data memory
+- Learning how to write testbench
+
 ## Week 5 (Oct 6 - Oct 12)
 - Wrote Register file
 - Discussed and compared the register file with parnter