Add release updates for Helm Chart 4.0.0 (#127)

diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index 4cc7ae4..7bc137c 100755
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -31,8 +31,7 @@
             { text: '8.1.0', link: "https://github.com/apache/skywalking/tree/v8.1.0/docs"},
             { text: 'Nginx LUA 0.3.0', link: "https://github.com/apache/skywalking-nginx-lua/tree/v0.3.0"},
             { text: 'CLI 0.4.0', link: "https://github.com/apache/skywalking-cli/tree/0.4.0"},
-            { text: 'Kubernetes helm 3.1.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v3.1.0"},
-            { text: 'Kubernetes helm 3.0.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v3.0.0"},
+            { text: 'Kubernetes helm 4.0.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v4.0.0"},
             { text: 'Python Agent 0.3.0', link: "https://github.com/apache/skywalking-python/tree/v0.3.0"},
             { text: 'Client JS 0.1.0', link: "https://github.com/apache/skywalking-client-js/tree/v0.1.0"},
           ], },
@@ -82,8 +81,7 @@
               { text: '8.1.0', link: "https://github.com/apache/skywalking/tree/v8.1.0/docs"},
               { text: 'Nginx LUA 0.3.0', link: "https://github.com/apache/skywalking-nginx-lua/tree/v0.3.0"},
               { text: 'CLI 0.4.0', link: "https://github.com/apache/skywalking-cli/tree/0.4.0"},
-              { text: 'Kubernetes helm 3.1.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v3.1.0"},
-              { text: 'Kubernetes helm 3.0.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v3.0.0"},
+              { text: 'Kubernetes helm 4.0.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v4.0.0"},
               { text: 'Python Agent 0.3.0', link: "https://github.com/apache/skywalking-python/tree/v0.3.0"},
               { text: 'Client JS 0.1.0', link: "https://github.com/apache/skywalking-client-js/tree/v0.1.0"},
             ],
diff --git a/docs/README.md b/docs/README.md
index 70cf793..5260af4 100755
--- a/docs/README.md
+++ b/docs/README.md
@@ -27,6 +27,10 @@
 news:
   title: Events & News
   content:
+  - header: SkyWalking Kubernetes Helm Chart 4.0.0 is released
+    content: Allow overriding default configurations files; Unify usages of different SkyWalking Versions.
+    time: Nov. 3rd, 2020
+
   - header: SkyWalking Client JS 0.1.0 is released
     content: Support Browser Side Monitoring. Require SkyWalking APM 8.2+.
     time: Oct. 30th, 2020
@@ -36,7 +40,3 @@
   - header: SkyWalking Nginx LUA 0.3.0 is released
     content: Add prefix to avoid conflicts with other LUA libs; Add `http.status` tag
     time: Oct. 24th, 2020
-  - header: SkyWalking CLI 0.4.0 is released
-    content: Add dashboard command and traces search
-    time: Oct. 11th, 2020
-
diff --git a/docs/downloads/README.md b/docs/downloads/README.md
index 4d9e0cf..1f8a422 100755
--- a/docs/downloads/README.md
+++ b/docs/downloads/README.md
@@ -39,10 +39,7 @@
 ### SkyWalking Chart
 | Date | Version| | Downloads |
 |:---:|:--:|:--:|:--:|
-| Aug. 13th, 2020 | 3.1.0 for SkyWalking 8.1.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.1.0/skywalking-kubernetes-3.1.0-src.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-kubernetes-3.1.0-src.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-kubernetes-3.1.0-src.tgz.sha512)|
-| | | Binary Distribution (Kubernetes)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.1.0/skywalking-3.1.0.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-3.1.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-3.1.0.tgz.sha512)|
-| Jun. 27th, 2020 | 3.0.0 for SkyWalking 8.0.1 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.0.0/skywalking-kubernetes-3.0.0-src.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-kubernetes-3.0.0-src.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-kubernetes-3.0.0-src.tgz.sha512)|
-| | | Binary Distribution (Kubernetes)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.0.0/skywalking-3.0.0.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-3.0.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-3.0.0.tgz.sha512)|
+| Nov. 3rd, 2020 | 4.0.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/4.0.0/skywalking-kubernetes-4.0.0-src.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/4.0.0/skywalking-kubernetes-4.0.0-src.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/4.0.0/skywalking-kubernetes-4.0.0-src.tgz.sha512)|
 
 ### SkyWalking Client JS
 | Date | Version| | Downloads |
diff --git a/docs/events/README.md b/docs/events/README.md
index d9b5f83..a9ffbe9 100755
--- a/docs/events/README.md
+++ b/docs/events/README.md
@@ -1,5 +1,13 @@
 # SkyWalking Events
 
+## Release Apache SkyWalking Kubernetes Helm Chart 4.0.0
+###### Nov. 3rd, 2020
+SkyWalking Kubernetes Helm Chart 4.0.0 is released. Go to [downloads](/downloads) page to find release tars.
+- Allow overriding configurations files under /skywalking/config.
+- Unify the usages of different SkyWalking versions.
+- Add Values for init container in case of using private regestry.
+- Add services, endpoints resources in ClusterRole.
+
 ## Release Apache SkyWalking Client JS 0.1.0
 ###### Oct. 30th, 2020
 SkyWalking Client JS 0.1.0 is released. Go to [downloads](/downloads) page to find release tars.
diff --git a/docs/zh/README.md b/docs/zh/README.md
index cb68991..463c1bc 100755
--- a/docs/zh/README.md
+++ b/docs/zh/README.md
@@ -28,6 +28,9 @@
 news:
   title: 事件 & 新闻
   content:
+  - header: SkyWalking Kubernetes Helm Chart 4.0.0 发布
+    content: 支持自定义覆盖默认配置文件; 统一不同 SkyWalking 版本的使用方式;
+    time: 2020 年 11 月 3 日
   - header: SkyWalking Client JS 0.1.0 发布
     content: 支持浏览器监控。需要SkyWalking APM 8.2以上版本。
     time: 2020 年 10 月 30 日
@@ -37,7 +40,4 @@
   - header: SkyWalking Nginx LUA 0.3.0 发布
     content: 库添加前缀避免与其他 LUA 库产生冲突; 添加 `http.status` tag
     time: 2020 年 10 月 24 日
-  - header: SkyWalking CLI 0.4.0 发布
-    content: 新增 dashboard 命令和 trace 搜索
-    time: 2020 年 10 月 11 日
 
diff --git a/docs/zh/downloads/README.md b/docs/zh/downloads/README.md
index 7713898..5bd87fe 100755
--- a/docs/zh/downloads/README.md
+++ b/docs/zh/downloads/README.md
@@ -37,10 +37,7 @@
 ### SkyWalking Chart
 | 日期 | 版本| | 下载 |
 |:---:|:--:|:--:|:--:|
-| Aug. 13th, 2020 | 3.1.0 for SkyWalking 8.1.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.1.0/skywalking-kubernetes-3.1.0-src.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-kubernetes-3.1.0-src.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-kubernetes-3.1.0-src.tgz.sha512)|
-| | | Binary Distribution (Kubernetes)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.1.0/skywalking-3.1.0.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-3.1.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.1.0/skywalking-3.1.0.tgz.sha512)|
-| Jun. 27th, 2020 | 3.0.0 for SkyWalking 8.0.1 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.0.0/skywalking-kubernetes-3.0.0-src.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-kubernetes-3.0.0-src.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-kubernetes-3.0.0-src.tgz.sha512)|
-| | | Binary Distribution (Kubernetes)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/3.0.0/skywalking-3.0.0.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-3.0.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/3.0.0/skywalking-3.0.0.tgz.sha512)|
+| Nov. 3rd, 2020 | 4.0.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/4.0.0/skywalking-kubernetes-4.0.0-src.tgz) [[asc]](https://downloads.apache.org/skywalking/kubernetes/4.0.0/skywalking-kubernetes-4.0.0-src.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/kubernetes/4.0.0/skywalking-kubernetes-4.0.0-src.tgz.sha512)|
 
 ### SkyWalking Client JS
 | 日期 | 版本| | 下载 |
diff --git a/docs/zh/events/README.md b/docs/zh/events/README.md
index e6b2051..635aca8 100755
--- a/docs/zh/events/README.md
+++ b/docs/zh/events/README.md
@@ -1,5 +1,11 @@
 # SkyWalking 事件概要
 
+## SkyWalking Kubernetes Helm Chart 4.0.0 发布
+###### 2020 年 11 月 3 日
+SkyWalking Kubernetes Helm Chart 4.0.0 发布. 前往 [下载页面](/downloads) 查看如何使用.
+- 支持自定义覆盖默认的 OAP 配置文件; (`/skywalking/config`).
+- 统一不同 SkyWalking 版本的使用方式.
+
 ## SkyWalking Client JS探针0.1.0发布
 ###### 2020 年 10 月 30 日
 SkyWalking Client Js 0.1.0 发布. 前往 [下载页面](/downloads) 查看如何使用.