The correct description when installing the certificate

Signed-off-by: dignow <linlong1265@gmail.com>

src/lang/cn.rs

@@ -460,8 +460,8 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Resolution", "分辨率"),
         ("No transfers in progress", "无进行中的传输"),
         ("Set one-time password length", "设置一次性密码长度"),
-        ("idd_driver_tip", "安装虚拟显示器驱动，以便在没有连接显示器的情况下启动虚拟显示器进行控制。"),
-        ("confirm_idd_driver_tip", "安装虚拟显示器驱动的选项已勾选。请注意，测试证书将被安装以信任虚拟显示器驱动。测试证书仅会用于信任Rustdesk的驱动。"),
+        ("install_cert_tip", "安装 RustDesk 证书"),
+        ("comfirm_install_cert_tip", "此证书为 RustDesk 测试证书，您可以信任此证书。证书将被用于信任和安装 RustDesk 驱动。"),
         ("RDP Settings", "RDP 设置"),
         ("Sort by", "排序方式"),
         ("New Connection", "新连接"),