docs(summary): josh cho dn

Author: umanachi

src/SUMMARY.md

@@ -31,6 +31,7 @@
 - [Fall 2024](design_notebooks/2024fall/00_toc.md)
   - [Anu Tadapaneni](design_notebooks/2024fall/at4881.md)
   - [Cameron Bedard](design_notebooks/2024fall/cb5179.md)
+  - [Joshua Cho](design_notebooks/2024fall/jsc9820.md)
   - [Darren Kuo](design_notebooks/2024fall/dk4461.md)
   - [Dmitri Lyalikov](design_notebooks/2024fall/dvl2013.md)
   - [Rielle Lim](design_notebooks/2024fall/gil2011.md)