docs(dn): Srijan Gupta 03/01/26 (#496)

Author: Srijan1972

src/design_notebooks/2026spring/sg9109.md

@@ -21,3 +21,7 @@
 - Completed the onboarding labs.
 - Read the first paper (About the CPU core).
 - Get to the next paper next week.
+
+## Week 5 (02/23/26 - 03/01/26)
+
+- Read the second paper (about the toolchains)