docs(dn): Xingzhi's dn March 20 2025 (#354)

* Create xd2305.md

* docs(dn):Xingzhi's dn March 20 2025

Author: xingzhi0420

src/design_notebooks/2025spring/xd2305.md

@@ -1 +1,11 @@
 ## Week of 13/2/2025
+- Meeting with the team
+
+## Week of 20/2/2025
+- Decide the mini project
+
+## Week of 1/3/2025
+- Outline Con_IF implementation
+
+## Week of 18/3/2025
+- Working on Con_MEM