Update README.md

MathHive · web-flow · commit eb0f2fad0fbb · 2025-09-01T15:16:47.000+08:00
diff --git a/README.md b/README.md
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 一个用manim库编写的Python原文件
+视频在https://t.bilibili.com/1107268991609470977?share_source=pc_native

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`1`	`1`	`一个用manim库编写的Python原文件`
	`2`	`+视频在https://t.bilibili.com/1107268991609470977?share_source=pc_native`