fix readme link

Author: gy2006

README.md

@@ -1,27 +1,39 @@
-flow-platform-x
-============
+<h3 align="center">
+  <a href="https://flowci.github.io">
+    <img src="https://github.com/FlowCI/docs/raw/master/src/icon.png" alt="fastlane Logo" width="100">
+  </a>
+</h3>
 
-[![LICENSE](https://img.shields.io/github/license/pingcap/tidb.svg)](https://github.com/pingcap/tidb/blob/master/LICENSE)
+<h3 align="center">A powerful and user-friendly CI/CD server</h3>
 
-Powerful and user-friendly CI/CD server
+<p align="center">
+    <a href="https://github.com/FlowCI/docs/blob/master/LICENSE"><img src="https://img.shields.io/github/license/flowci/flow-core-x"></a>
+    <a href="https://github.com/FlowCI/flow-core-x/releases/"><img src="https://img.shields.io/github/v/release/flowci/flow-core-x"></a>
+</p>
 
-- Getting started within a minute &nbsp; :tada:
+## Key Features
 
-- Simple YAML configuration and templates &nbsp; :ghost:
+- Zero configuration, can be getting started within a minute
 
-- Elastic Agents to speed up build &nbsp; :rocket:
+- Simple YAML configuration and templates
 
-- Online TTY to debug your job in time &nbsp; :shell:
+- Elastic agents to speed up build
 
-- Flexible plugins &nbsp; :electric_plug:
+- Online TTY to debug your job in time
 
-- Run steps either on any docker images or native os &nbsp; :computer:
+- Flexible plugins
 
-## [Document](./en/index.md) | [中文文档](./zh/index.md)
+- Run steps either on any docker images or native os
 
-## [Templates (maven, npm, golang..)](./en/index.md)
+## Document
 
-## Quick Start
+[English](https://github.com/FlowCI/docs/tree/master/en/index.md) | [中文文档](https://github.com/FlowCI/docs/tree/master/cn/index.md)
+
+## Templates
+
+[maven, npm, golang, ruby, android and more](https://github.com/FlowCI/templates)
+
+## Installation
 
 > [Docker](https://docs.docker.com/install/) & [Docker-Compose](https://docs.docker.com/compose/install/) are required
 
@@ -31,4 +43,8 @@ cd flow-docker
 ./server.sh start
 ```
 
+## Preview
+
 ![demo](https://github.com/FlowCI/docs/raw/master/src/demo.gif)
+
+![tty](https://github.com/FlowCI/docs/raw/master/src/step_tty.gif)