Update teaching.md

chengjun · web-flow · commit 0d46f7244c51 · 2025-09-27T15:22:22.000+08:00
diff --git a/_pages/teaching.md b/_pages/teaching.md
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 nav_order: 5
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+<img width="988" height="493" alt="image" src="https://github.com/user-attachments/assets/b084ac19-c06d-43e5-9173-a3d46e377faf" />
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 ## Courses
 
 I am teaching the following courses:
