From fc7f5e9278c34e60639256505e67b8b3f50d6c06 Mon Sep 17 00:00:00 2001
From: fengdu78 <haiguang2000@qq.com>
Date: Thu, 29 Mar 2018 11:33:08 +0800
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 README.md | 2 +-
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diff --git a/README.md b/README.md
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@@ -50,7 +50,7 @@
 
 [笔记在线阅读](http://www.ai-start.com/ml2014)
 
-[笔记pdf版本下载](https://github.com/fengdu78/Coursera-ML-AndrewNg-Notes/blob/master/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0%E4%B8%AA%E4%BA%BA%E7%AC%94%E8%AE%B0%E5%AE%8C%E6%95%B4%E7%89%88v5.pdf)
+[笔记pdf版本下载](https://github.com/fengdu78/Coursera-ML-AndrewNg-Notes/blob/master/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0%E4%B8%AA%E4%BA%BA%E7%AC%94%E8%AE%B0%E5%AE%8C%E6%95%B4%E7%89%88v5.1-A4%E6%89%93%E5%8D%B0%E7%89%88.pdf)
 
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