Update events and team (#47)

* Update events and team

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Remove oldest news
diff --git a/docs/README.md b/docs/README.md
index cd7650c..bfae6d0 100755
--- a/docs/README.md
+++ b/docs/README.md
@@ -25,6 +25,9 @@
 news:
   title: Events & News
   content:
+  - header: Welcome Zhenxu Ke as a new committer
+    content: Based on his continuous contributions, he has been voted as a new committer.
+    time: June 17th, 2019
   - header: SkyWalking 6.1.0 release
     content: First release after being Top Level Project, including RocketBot UI.
     time: May 5th 2019
@@ -34,7 +37,4 @@
   - header: SkyWalking graduated as Apache Top Level Project
     content: Apache board approved SkyWalking graduated as TLP at April 17th 2019.
     time: April 17th 2019
-  - header: Welcome Yuguang Zhao as a new committer
-    content: Based on his continuous contributions, he has been accepted as a new committer.
-    time: April 15th, 2019
----
+
diff --git a/docs/events/README.md b/docs/events/README.md
index e7a7d0a..0713ee6 100755
--- a/docs/events/README.md
+++ b/docs/events/README.md
@@ -1,5 +1,9 @@
 # SkyWalking Events
 
+## Welcome Zhenxu Ke as a new committer
+###### June 17th, 2019
+Based on his continuous contributions, Zhenxu Ke (a.k.a [kezhenxu94](https://github.com/kezhenxu94)) has been voted as a new committer.
+
 ## Release Apache SkyWalking APM 6.1.0
 ###### May 5th, 2019
 6.1.0 release. Go to [downloads](/downloads) page to find release tars.
diff --git a/docs/team/README.md b/docs/team/README.md
index 08ec1bb..344b58b 100755
--- a/docs/team/README.md
+++ b/docs/team/README.md
@@ -35,6 +35,7 @@
 |:---|:--|
 |Sheng Wang| wangsheng |
 |Yuntao Li| liyuntao |
+|Zhenxu Ke| kezhenxu94 |
 
 ## Contributors
 
diff --git a/docs/zh/README.md b/docs/zh/README.md
index 91c2b98..a95febf 100755
--- a/docs/zh/README.md
+++ b/docs/zh/README.md
@@ -26,6 +26,9 @@
 news:
   title: 事件 & 新闻
   content:
+  - header: 欢迎柯振旭成为新的 committer
+    content: 根据他对项目长期的贡献,他被投票选举为项目的 committer。
+    time: 2019年4月15日
   - header: SkyWalking 6.1.0发布
     content: SkyWalking毕业后首个版本发布,包含新RocketBot UI。
     time: 2019年5月5日
@@ -35,6 +38,4 @@
   - header: SkyWalking 毕业成为Apache顶级项目
     content: Apache董事会批准SkyWalking孵化器毕业,成为顶级项目。
     time: 2019年4月17日
-  - header: 欢迎赵禹光成为新的committer
-    content: 根据他长期的项目贡献,他被提升为项目的committer。
-    time: 2019年4月15日
+
diff --git a/docs/zh/events/README.md b/docs/zh/events/README.md
index 571fd41..f416174 100755
--- a/docs/zh/events/README.md
+++ b/docs/zh/events/README.md
@@ -1,5 +1,9 @@
 # SkyWalking 事件概要
 
+## 欢迎柯振旭成为新的committer
+###### 2019年6月17日
+根据他长期的项目贡献,他被投票选举为项目的 committer。
+
 ## SkyWalking 6.1.0 发布
 ###### 2019年5月5日
 Apache SkyWalking 6.1.0发布。跳转到 [下载](/downloads) 页面查找发布版本。
diff --git a/docs/zh/team/README.md b/docs/zh/team/README.md
index f468daa..2236278 100755
--- a/docs/zh/team/README.md
+++ b/docs/zh/team/README.md
@@ -34,6 +34,7 @@
 |:---|:--|
 |Sheng Wang| wangsheng |
 |Yuntao Li| liyuntao |
+|Zhenxu Ke| kezhenxu94 |
 
 ## 贡献者
 自从Skywalking使用Github之后,拥有了许多的贡献者,你可以在我们的存储库贡献列表中找到它们。