docs: add build instruction using vs 2022

The default path for vcvarsall.bat is changed, refer https://docs.microsoft.com/en-us/visualstudio/install/change-installation-locations?view=vs-2022

README-CN.md

@@ -174,6 +174,8 @@ cmake .. -G "NMake Makefiles"
 nmake
 ```
 
+如果你使用的是 Visual Studio 2022 版本， 脚本 `vcvarsall.bat` 的默认安装路径是 `C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvarsall.bat`。 
+
 ### Mac OS X 系统
 
 安装 Xcode 命令行工具和 cmake. 在 Catalina 和 Big Sur 操作系统上，需要安装 XCode 11.4+ 版本。

README.md

@@ -136,7 +136,7 @@ cmake .. -DCPUTYPE=mips64 && cmake --build .
 
 ### On Windows platform
 
-If you use the Visual Studio 2013, please open a command window by executing "cmd.exe".
+If you use Visual Studio 2013, please open a command window by executing "cmd.exe".
 Please specify "amd64" for 64 bits Windows or specify "x86" is for 32 bits Windows when you execute vcvarsall.bat.
 ```cmd
 mkdir debug && cd debug
@@ -145,7 +145,7 @@ cmake .. -G "NMake Makefiles"
 nmake
 ```
 
-If you use the Visual Studio 2019 or 2017:
+If you use Visual Studio 2019 or 2017:
 
 please open a command window by executing "cmd.exe".
 Please specify "x64" for 64 bits Windows or specify "x86" is for 32 bits Windows when you execute vcvarsall.bat.
@@ -164,6 +164,8 @@ cmake .. -G "NMake Makefiles"
 nmake
 ```
 
+If you use Visual Studio 2022, the only change is the default path of `vcvarsall.bat`, which is `C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvarsall.bat`.
+
 ### On Mac OS X platform
 
 Please install XCode command line tools and cmake. Verified with XCode 11.4+ on Catalina and Big Sur.