docs(dn): Hongtai_Du_19/10/2025 (#416)

Author: HongtaiDu

src/design_notebooks/2025fall/hd2609.md

@@ -46,3 +46,10 @@ Summary: This week is less stressful than last week. I met with team and confirm
 
 Summary: Now all labs are finished. For next week, I will find meeting time with team for next step.
 
+## Week of October 12th
+
+* Did more Verilog practice questions on the HDLBits. I finished until "Connecting to poarts by position" problem.
+  
+Summary: This week I did not meet with team because I was busy with midterms and presentations. I did not have time to meet with team. I have one more midterm next week on Wednesday. I plan to meet with team on Friday or on weekend. 
+
+