update readme

Author: gy2006

README.md

@@ -1,18 +1,34 @@
 flow-platform-x
 ============
 
-[![LICENSE](https://img.shields.io/github/license/pingcap/tidb.svg)](https://github.com/pingcap/tidb/blob/master/LICENSE)  
+[![LICENSE](https://img.shields.io/github/license/pingcap/tidb.svg)](https://github.com/pingcap/tidb/blob/master/LICENSE)
 
-A open-source continues integration server that makes CI/CD easier
+Powerful and user-friendly CI/CD server
 
-## Getting Started
+- Getting started within a minute   :tada:
 
-- [Install from docker](https://github.com/FlowCI/docker)
+- Simple YAML configuration and templates   :ghost:
 
-- [Documentation](https://github.com/flowci/docs)
+- Elastic Agents to speed up build   :rocket:
 
-- [YAML Templates](https://github.com/FlowCI/templates)
+- Online TTY to debug your job in time   :shell:
 
-## Demo
+- Flexible plugins   :electric_plug:
 
-![](https://github.com/FlowCI/docs/raw/master/src/demo.gif)
+- Run steps either on any docker images or native os   :computer:
+
+## [Document](./en/index.md) | [中文文档](./zh/index.md)
+
+## [Templates (maven, npm, golang..)](./en/index.md)
+
+## Quick Start
+
+> [Docker](https://docs.docker.com/install/) & [Docker-Compose](https://docs.docker.com/compose/install/) are required
+
+```bash
+git clone https://github.com/FlowCI/docker.git flow-docker
+cd flow-docker
+./server.sh start
+```
+
+![](./src/demo.gif)