Update README.md

Albert-Lsk · web-flow · commit effdd4cbb3f4 · 2026-04-09T18:03:10.000+08:00
diff --git a/README.md b/README.md
@@ -6,6 +6,9 @@
 
 [在线访问](https://albert-lsk.github.io/Markdown-Tutorial/)
 
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+<img width="2970" height="1194" alt="image" src="https://github.com/user-attachments/assets/df2bf4c9-752f-41f1-8c4c-093c320095a5" />
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 ## 这个项目现在是什么
 
 - 中文优先的 Markdown 教程站
