Add Hangzhou meetup summary to blog

blog/en-us/dubbo-meetup-hangzhou.md

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+---
+title: The fifth Dubbo meetup has been held in Hangzhou
+keywords: Dubbo, Hangzhou, meetup
+description: The fifth Dubbo meetup has been held in Hangzhou
+---
+
+# The fifth Dubbo meetup has been held in Hangzhou
+
+
+The fifth Dubbo meetup has been held in Hangzhou,
+
+Please enjoy the slides of the topics:
+  * Ding Li: How to involve in dubbo community [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/how-to-involve-in-dubbo-community.pdf)
+  * Shenli Cao: Dubbo 2.7 introduction [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/dubbo-2.7-introduction.pdf)
+  * Tao Yang:  Dubbo practice in netease koala [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/dubbo-practice-in-netease-koala.pdf)
+  * Mercy Ma: Nacos support in Dubbo [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/nacos-support-in-dubbo.pdf)
+  * Yihao Zhao: Sentinel: Sentinel support for Dubbo [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/sentinel-support-for-dubbo.pdf)
+  * Zhixuan Chen: Troubleshooting Dubbo with Arthas [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/troubleshooting-dubbo-with-arthas.pdf)
+

blog/zh-cn/dubbo-meetup-hangzhou.md

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+---
+title: 第五届Dubbo开发者沙龙在杭州成功举办
+keywords: Dubbo, 杭州, meetup
+description: 第五届Dubbo开发者沙龙在杭州成功举办。
+---
+
+# 第五届Dubbo开发者沙龙在杭州成功举办
+
+
+第五届Dubbo开发者沙龙在杭州成功举办，
+
+分享嘉宾
+  * 李鼎: 如何参与Dubbo开源社区 [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/how-to-involve-in-dubbo-community.pdf)
+  * 曹胜利: Dubbo 2.7新特性介绍及演示 [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/dubbo-2.7-introduction.pdf)
+  * 陶杨:  Dubbo在考拉的应用实践 [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/dubbo-practice-in-netease-koala.pdf)
+  * 小马哥: Dubbo+Nacos服务治理重新实现 [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/nacos-support-in-dubbo.pdf)
+  * 赵奕豪: Sentinel:分布式服务的流量防卫兵 [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/sentinel-support-for-dubbo.pdf)
+  * 陈志轩: 当Dubbo遇上Arthas:排查问题的实践 [slides](https://github.com/dubbo/awesome-dubbo/blob/master/slides/meetup/201812%40hangzhou/troubleshooting-dubbo-with-arthas.pdf)
+