Update cheatsheets

powershell

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# powershell
+
+> This command may be mistaken as the cross-platform version of PowerShell (formerly known as PowerShell Core), which uses `pwsh` instead of `powershell`.
+> The original `powershell` command in Windows is still available to use the legacy Windows version of PowerShell (version 5.1 and below).
+> More information: <https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_pwsh>.
+
+- View the documentation for the command referring to the latest, cross-platform version of PowerShell (version 6 and above):
+
+`tldr pwsh`
+
+- View the documentation for the command referring to the legacy Windows PowerShell (version 5.1 and below):
+
+`tldr powershell -p windows`