Update README.md

dev/README.md

@@ -73,3 +73,8 @@ bash <(curl -sSL https://cdn.jsdelivr.net/gh/sky22333/shell@main/dev/root.sh)
 > 部分机器修改不生效，请打开查找`/etc/ssh/sshd_config.d/xxxx.conf`类似文件
 > 
 > 打开文件查找`PasswordAuthentication no`此代码将其注释，然后重启SSH服务。
+
+- SSH公钥批量下发脚本
+```
+bash <(curl -sSL https://cdn.jsdelivr.net/gh/sky22333/shell@main/dev/ssh-pub.sh) -pub "your-public-key"
+```