update docs

Author: Tomas-PawSQL

README.md

@@ -4,7 +4,7 @@
 ## Introduction
 PawSQL Client enables developers to access core capabilities of the PawSQL directly within VSCode enviroment. PawSQL provides sophisticated SQL optimization features including smart index recommendations and query rewrites. More about PawSQL's capabilities, please visit [https://docs.pawsql.com](https://docs.pawsql.com).
 
-[PawSQL Client Demo](/resources/demo.gif)
+![PawSQL Client Demo](/resources/demo.gif)
 
 ## Features
 - **Optimize by Clicks**: Get optimization recommendation for your SQL query by one click.

README_zh-CN.md

@@ -6,7 +6,7 @@
 
 PawSQL Client让开发者能够在VS Code开发环境中直接使用PawSQL引擎强大的SQL优化能力，包括智能索引推荐、查询重写建议、自动化性能验证等。PawSQL Client需要结合PawSQL优化平台（[PawSQL Cloud](https://pawsql.com)或企业私域部署的PawSQL优化平台）一起使用。关于更全面的PawSQL的SQL优化能力，请参考[PawSQL官方文档](https://docs.pawsql.com)。
 
-[PawSQL Client Demo](/resources/demo.gif)
+![PawSQL Client Demo](/resources/demo.gif)
 
 ## 功能