update date, add minimal installation hints

Signed-off-by: N周鹏飞@yunify <pengfeizhou@yunify.com>

README.md

@@ -75,10 +75,12 @@ KubeSphere adopts the separation of front and back ends, each component is drawn
 
 ## Latest Release
 
-KubeSphere 2.1.0 was released on **July 9th, 2019**. See the [Release Notes For 2.1.0](https://kubesphere.io/docs/v2.1/zh-CN/release/release-v210/) to preview the updates.
+KubeSphere 2.1.0 was released on **November 12nd, 2019**. See the [Release Notes For 2.1.0](https://kubesphere.io/docs/v2.1/zh-CN/release/release-v210/) to preview the updates.
 
 ## Installation
 
+> Attention: Following section is only used for minimal installation by default, KubeSphere has decoupled some core components in v2.1.0, for more pluggable components installation, see `Enable Pluggable Components` below.
+
 ### Deploy On Kubernetes
 
 **Prerequisites**
@@ -94,6 +96,7 @@ When all Pods of KubeSphere are running, it means the installation is successsfu
 $ kubectl apply -f https://raw.githubusercontent.com/kubesphere/ks-installer/master/kubesphere-minimal.yaml
 ```
 
+
 ### Deploy on Linux
 
 - Operating Systems
@@ -118,6 +121,13 @@ Choose `"1) All-in-one"` to trigger the installation. Generally, you can install
 
 > Note: In a formal environment, it's highly recommended to install KubeSphere with Multi-Node Installation.
 
+### Enable Pluggable Components
+
+The above two methods is only used for minimal installation by default, execute following command to enable more pluggable components installation, make sure your cluster has enough CPU and memory in advance.
+
+```
+$ kubectl edit cm -n kubesphere-system ks-installer
+```
 
 ## To start using KubeSphere
 

README_zh.md

@@ -108,12 +108,18 @@ $ ./install.sh
 > - 集群的可用 CPU > 1 C，可用内存 > 2 G；且集群能够访问外网
 > - 集群已有存储类型（StorageClass）；
 
-1. 可参考 [前提条件](https://kubesphere.io/docs/v2.1/zh-CN/installation/prerequisites/) 验证，若待安装的环境满足以上条件则可以开始部署 KubeSphere，当 KubeSphere 的所有 Pod 都为 RRunning 则说明安装成功。使用 `http://IP:30880` 访问 Dashboard，默认账号为 `admin/P@88w0rd`。
+可参考 [前提条件](https://kubesphere.io/docs/v2.1/zh-CN/installation/prerequisites/) 验证，若待安装的环境满足以上条件则可以开始部署 KubeSphere，当 KubeSphere 的所有 Pod 都为 RRunning 则说明安装成功。使用 `http://IP:30880` 访问 Dashboard，默认账号为 `admin/P@88w0rd`。
 
 ```yaml
 $ kubectl apply -f https://raw.githubusercontent.com/kubesphere/ks-installer/master/kubesphere-minimal.yaml
 ```
 
+注意，以上两种安装方式默认是 **最小化安装**，由于 2.1.0 已对大部分功能组件解耦，实现了功能组件的可插拔，因此可在 **安装完成后** 执行以下命令开启可插拔功能组件的安装，开启安装前确认您的机器资源已符合 [资源最低要求](https://kubesphere.io/docs/v2.1/zh-CN/installation/intro/#%E5%8F%AF%E6%8F%92%E6%8B%94%E5%8A%9F%E8%83%BD%E7%BB%84%E4%BB%B6%E5%88%97%E8%A1%A8)。
+
+```
+$ kubectl edit cm -n kubesphere-system ks-installer
+```
+
 ## 开始使用 KubeSphere
 
 ### 快速入门