fix: format of macOS-26-Configure-SSH-key-based-login-and-change-the-SSH-listening-port.md

docs/tech/macOS-26-Configure-SSH-key-based-login-and-change-the-SSH-listening-port.md

@@ -123,6 +123,11 @@ username@192.168.1.123: Permission denied (publickey).
 
     ```bash
     sudo /usr/sbin/sshd -T | grep -E "Port"
+    ```
+
+    预期输出:
+
+    ```
     Port 2233
     GatewayPorts no
     ```