diff --git a/README.md b/README.md
index 18c1b5d..c5ff8ab 100644
--- a/README.md
+++ b/README.md
@@ -57,12 +57,6 @@ Docker 自身仍在快速发展中，生态环境也在蓬勃成长。建议初
 
 《[Docker 技术入门与实战](https://union-click.jd.com/jdc?e=&p=AyIGZRtYFAcXBFIZWR0yEgRQH1kXAhs3EUQDS10iXhBeGlcJDBkNXg9JHU4YDk5ER1xOGRNLGEEcVV8BXURFUFdfC0RVU1JRUy1OVxUBFwNXGVscMlVYLlAaXAV1Z1JHA0dWEHVXZTliY1QLWStaJQAWB10fXhwKEDdlG1wlUHzf462DsLMO0%2F%2BUjp2VIgZlG18RBBcCUBlbEAoTBWUcWxwySVI7HAhBBxEOBUgOFQYQUGUraxYyIjdVK1glQHxXUEhYEVEUUFQcC0IHGgRRSAgVARAPAhsLFgNCDl0ZWiUAEwZREg%3D%3D&t=W1dCFFlQCxxKQgFHREkdSVJKSQVJHFRXFk9FUlpGQUpLCVBaTFhbXQtWVmpSWRtYEAYQBVUS)》第三版已经面世，介绍最新的容器技术栈，欢迎大家阅读使用并反馈建议。
 
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-<img width="200" src="https://user-images.githubusercontent.com/16733187/57310918-3c3afd80-711d-11e9-8816-266e5ede70bb.jpg">
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