update com.cn to io, add roadmap

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

README.md

@@ -68,7 +68,7 @@ KubeSphere provides an easy-to-use console with awesome user experience that all
 
 It also supports a variety of open source storage solutions and cloud storage products as the persistent storage services, as well as supports multiple open source network plugins.
 
-> Note: See this [document](https://kubesphere.com.cn/docs/v2.1/en/introduction/features/) which elaborates on the KubeSphere features and services.
+> Note: See this [document](https://kubesphere.io/docs/v2.1/en/introduction/features/) which elaborates on the KubeSphere features and services.
 
 ----
 
@@ -86,7 +86,7 @@ KubeSphere 2.1.0 was released on **November 12nd, 2019**. Check the [Release Not
 
 ## Installation
 
-> Attention: The following section is only used for minimal installation by default, see [Complete Installation Guide](https://kubesphere.com.cn/docs/v2.1/en/installation/intro/) for details.
+> Attention: The following section is only used for minimal installation by default, see [Complete Installation Guide](https://kubesphere.io/docs/v2.1/en/installation/intro/) for details.
 
 ### Deploy on Existing Kubernetes
 
@@ -137,14 +137,14 @@ Choose `"1) All-in-one"` to start the installation without changing any configur
 
 KubeSphere provides 12 quick-start tutorials to walk you through the platform.
 
-- [Get Started - En](https://kubesphere.com.cn/docs/v2.1/en/quick-start/admin-quick-start/)
+- [Get Started - En](https://kubesphere.io/docs/v2.1/en/quick-start/admin-quick-start/)
 - [Get Started - 中](https://kubesphere.io/docs/v2.1/zh-CN/quick-start/admin-quick-start/)
 
 
 ### Documentation
 
-- KubeSphere Documentation ([En](https://kubesphere.io/docs/en/)/[中](https://kubesphere.com.cn/docs/zh-CN/)）
-- [API Documentation](https://kubesphere.com.cn/docs/v2.1/en/api-reference/api-docs/)
+- KubeSphere Documentation ([En](https://kubesphere.io/docs/en/)/[中](https://kubesphere.io/docs/zh-CN/)）
+- [API Documentation](https://kubesphere.io/docs/v2.1/en/api-reference/api-docs/)
 
 
 ## To start developing KubeSphere

docs/roadmap.md

+# KubeSphere Roadmap
+
+KubeSphere Roadmap demonstrates a list of open source product development plans and features being split by the edition and modules, as well as OpenPitrix community's anticipation. Obviously, it details the future's direction of OpenPitrix, but may change over time. We hope that can help you to get familiar with the project plans and vision through the Roadmap. Of course, if you have any better ideas, welcome to [Issues](https://github.com/kubesphere/kubesphere/issues).
+
+## Release Goals
+
+| Edition  | Schedule |
+|---|---|
+| Release Express| Jul, 2018 |
+| Release v1.0.0| Dec, 2018 |
+| Release v1.0.1| Jan, 2019 |
+| Release v2.0.0| May, 2019 |
+| Release v2.0.1| June, 2019|
+| Release v2.0.2| Jul, 2019 |
+| Release v2.1.0| Nov, 2019 |
+| Release v2.1.1| Feb, 2020 |
+| Release v3.0.0| Mar, 2020 |
+
+## Features
+
+### v2.1.1
+
+- [ ] Most of the work will be bugfix
+- [ ] Refactor RBAC in order to support future versions regarding third-party plugins with custom access control.
+- [ ] Refactor installer
+
+### v3.0.0
+
+#### Multi-cluster
+
+#### DevOps
+
+#### Observability
+
+#### Network
+
+#### Storage
+
+#### Security & Multitenancy
+
+#### Application Store (OpenPitrix)