[Doc]Update English version of some documents (#1083)

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examples/vision/detection/yolov5lite/cpp/README.md

@@ -5,8 +5,8 @@ This directory provides examples that `infer.cc` fast finishes the deployment of
 
 Before deployment, two steps require confirmation
 
-- 1. Software and hardware should meet the requirements. Please refer to [FastDeploy Environment Requirements](../../../../../docs/cn/build_and_install/download_prebuilt_libraries.md)  
-- 2. Download the precompiled deployment library and samples code according to your development environment. Refer to [FastDeploy Precompiled Library](../../../../../docs/cn/build_and_install/download_prebuilt_libraries.md)
+- 1. Software and hardware should meet the requirements. Please refer to [FastDeploy Environment Requirements](../../../../../docs/en/build_and_install/download_prebuilt_libraries.md)  
+- 2. Download the precompiled deployment library and samples code according to your development environment. Refer to [FastDeploy Precompiled Library](../../../../../docs/en/build_and_install/download_prebuilt_libraries.md)
 
 Taking the CPU inference on Linux as an example, the compilation test can be completed by executing the following command in this directory. FastDeploy version 0.7.0 or above (x.x.x>=0.7.0) is required to support this model.
 
@@ -37,7 +37,7 @@ The visualized result after running is as follows
 <img width="640" src="https://user-images.githubusercontent.com/67993288/184301943-263c8153-a52a-4533-a7c1-ee86d05d314b.jpg">
 
 The above command works for Linux or MacOS. For SDK use-pattern in Windows, refer to:
-- [How to use FastDeploy C++ SDK in Windows](../../../../../docs/cn/faq/use_sdk_on_windows.md)
+- [How to use FastDeploy C++ SDK in Windows](../../../../../docs/en/faq/use_sdk_on_windows.md)
 
 ## YOLOv5Lite C++ Interface 
 
@@ -90,4 +90,4 @@ Users can modify the following pre-processing parameters to their needs, which a
 - [Model Description](../../)
 - [Python Deployment](../python)
 - [Vision Model Prediction Results](../../../../../docs/api/vision_results/)
-- [How to switch the model inference backend engine](../../../../../docs/cn/faq/how_to_change_backend.md)
+- [How to switch the model inference backend engine](../../../../../docs/en/faq/how_to_change_backend.md)