add install PowerShell on Windows link

README.md

@@ -220,4 +220,6 @@ Hello world!%
 - Linux
 - Windows
 
-on Windows platform, you need to install ```PowerShell``` in advance
+on Windows platform, you need to
+install [PowerShell](https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-on-windows?view=powershell-7.2)
+in advance

README_ZH.md

@@ -219,4 +219,5 @@ Hello world!%
 - Linux
 - Windows
 
-Windows 下需要安装 ```PowerShell```
+Windows
+下需要安装 [PowerShell](https://docs.microsoft.com/zh-cn/powershell/scripting/install/installing-powershell-on-windows?view=powershell-7.2)