Add semester dn folder (#373)

* Update nm4207.md

* docs(dn): Noah MS 9/14/25

Author: Noahms12

src/design_notebooks/2025fall/nm4207

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+# Noah Mays-Smith's Design Notebook
+
+## Week One:
+This week I created 2025fall design notebook folder, created and presented the slideshow for our first meeting, 
+and split the new members into their pairs for the RiSC-16 project. Next week, I plan on meeting with each of the teams,
+either all together or individually, to ensure they are set on the right track for the project. Additionally, I will create 
+a page on the website dedicated to the RiSC-16 project, so that everyone can access information easily.