update OpenVINO-Readme

Author: Ar-Ray-code

weights/openvino/example_openvino.md

@@ -2,20 +2,21 @@
 
 - yolox_nano.bin
 - yolox_nano.mapping
-- yolox_nano.onnx
 - yolox_nano.xml
 
 ## How to create and Install OpenVINO's weights
 
-> Note : Setup Open VINO before run these commands.
+> Note : Setup Open VINO 2021 before run these commands.
 
 ```bash
+export MODEL="yolox_tiny"
+export MO=/opt/intel/openvino_2021/deployment_tools/model_optimizer/mo.py
+
 rm -rf ~/openvino_download
 mkdir ~/openvino_download
 cd ~/openvino_download
-wget https://github.com/Megvii-BaseDetection/YOLOX/releases/download/0.1.1rc0/yolox_nano.onnx
-export MO=/opt/intel/openvino_2021/deployment_tools/model_optimizer/mo.py
-python3 $MO --input_model ./yolox_nano.onnx --input_shape [1,3,640,640] --data_type FP16 --output_dir ./
+wget https://github.com/Megvii-BaseDetection/YOLOX/releases/download/0.1.1rc0/$MODEL.onnx
+python3 $MO --input_model ./yolox_nano.onnx --input_shape [1,3,416,416] --data_type FP16 --output_dir ./
 cp -r ./* ~/ros2_ws/src/YOLOX-ROS/weights/openvino/
 cd ~/ros2_ws/
 colcon build --symlink-install