docs: fix resource path

docs/en_US/guide/ai/onnx.md

@@ -76,7 +76,7 @@ Rest API rule creation to call the model:
 
 The results are shown in the image below, indicating the predicted probabilities of different digits in the input image.
 
-![result query](../../../resources/mqttx_mnist.png)
+![result query](../../resources/mqttx_mnist.png)
 
 You can use a program like the one below to send images located in the ONNX directory.
 
@@ -182,7 +182,7 @@ The results are shown in the image below, with the inference returning:
 ]
 ```
 
-![result query](../../../resources/mqttx_sum_and_difference.png)
+![result query](../../resources/mqttx_sum_and_difference.png)
 
 Send test data like below through MQTT client.
 

docs/zh_CN/guide/ai/onnx.md

@@ -73,7 +73,7 @@ Rest API 创建规则以调用模型：
 
 结果如下图所示，输入图片之后，推导出图片中不同数字的输出可能性。
 
-![结果查询](../../../resources/mqttx_mnist.png)
+![结果查询](../../resources/mqttx_mnist.png)
 
 你可以使用类似如下程序的方式来发送图片，图片位于ONNX目录下。
 
@@ -168,7 +168,7 @@ POST /rules
 [{"onnx":[[1.9999883,0.60734314]]}]
 ```
 
-![结果查询](../../../resources/mqttx_sum_and_difference.png)
+![结果查询](../../resources/mqttx_sum_and_difference.png)
 
 你可以使用 MQTT 客户端发送测试数据。