docs: add CNCF best practice badge (#173)

Signed-off-by: chenhuan <xiangyuyu_2024@qq.com>

Author: chenhuansome

README.md

@@ -1,6 +1,7 @@
 # opengemini-client-java
 
 ![License](https://img.shields.io/badge/license-Apache2.0-green)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/11009/badge)](https://www.bestpractices.dev/projects/11009)
 ![Language](https://img.shields.io/badge/language-C-blue.svg)
 [![version](https://img.shields.io/github/v/tag/opengemini/opengemini-client-java?label=release&color=blue)](https://github.com/opengemini/opengemini-client-java/releases)
 

README_CN.md

@@ -1,6 +1,7 @@
 # opengemini-client-java
 
 ![License](https://img.shields.io/badge/开源许可证-Apache2.0-green)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/11009/badge)](https://www.bestpractices.dev/projects/11009)
 ![language](https://img.shields.io/badge/语言-Java-blue.svg)
 [![version](https://img.shields.io/github/v/tag/opengemini/opengemini-client-java?label=%e5%8f%91%e8%a1%8c%e7%89%88%e6%9c%ac&color=blue)](https://github.com/opengemini/opengemini-client-java/releases)