修改readme

README.md

@@ -26,7 +26,7 @@ YoloV7模型的推理示例程序是YoloV7_infer_migraphx.py，使用如下命
 
 ```
 # 进入python示例目录
-cd ./Python
+cd <path_to_yolov7_migraphx>/Python
 
 # 安装依赖
 pip install -r requirements.txt
@@ -78,13 +78,13 @@ rbuild build -d depend
 **Centos**:
 
 ```
-export LD_LIBRARY_PATH=<path_to_migraphx_samples>/depend/lib64/:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH=<path_to_yolov7_migraphx>/depend/lib64/:$LD_LIBRARY_PATH
 ```
 
 **Ubuntu**:
 
 ```
-export LD_LIBRARY_PATH=<path_to_migraphx_samples>/depend/lib/:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH=<path_to_yolov7_migraphx>/depend/lib/:$LD_LIBRARY_PATH
 ```
 
 然后执行:
@@ -99,7 +99,7 @@ source ~/.bashrc
 
 ```
 # 进入migraphx samples工程根目录
-cd <path_to_migraphx_samples> 
+cd <path_to_yolov7_migraphx> 
 
 # 进入build目录
 cd ./build/