docs: polish quickstart content (#149)

Author: AlbumenJ

README.md

@@ -1,4 +1,3 @@
-[**中文主页**](README_zh.md)
 <p align="center">
   <img
     src="https://img.alicdn.com/imgextra/i1/O1CN01nTg6w21NqT5qFKH1u_!!6000000001621-55-tps-550-550.svg"
@@ -7,6 +6,12 @@
   />
 </p>
 
+<p align="center">
+  <a href="https://java.agentscope.io/">📖 Official Website</a>
+  &nbsp;|&nbsp;
+  <a href="README_ZH.md">中文主页</a>
+</p>
+
 ## AgentScope Java
 
 An agent-oriented programming framework for building LLM applications in Java.

README_zh.md

@@ -1,4 +1,3 @@
-[**English Homepage**](README.md)
 <p align="center">
   <img
     src="https://img.alicdn.com/imgextra/i1/O1CN01nTg6w21NqT5qFKH1u_!!6000000001621-55-tps-550-550.svg"
@@ -7,6 +6,12 @@
   />
 </p>
 
+<p align="center">
+  <a href="https://java.agentscope.io/zh/intro.html">📖 官方网站</a>
+  &nbsp;|&nbsp;
+  <a href="README.md">English Homepage</a>
+</p>
+
 ## AgentScope Java
 
 面向 Java 开发者的智能体编程框架，用于构建大语言模型应用。