windows/*: add PowerShell pwd and mv equivalents (#11342)

* windows/*: add PowerShell pwd and mv equivalents

* move-item: simplify examples

* move-item: fix typo

* get-location, move-item: add PowerShell-only notice

pages/windows/pwd.md

@@ -0,0 +1,13 @@
+# pwd
+
+> In PowerShell, this command is an alias of `Get-Location`.
+> However, this command is not available on the Command Prompt (`cmd`). Use `cd` instead for similar functionality.
+> More information: <https://learn.microsoft.com/powershell/module/microsoft.powershell.management/get-location>.
+
+- View documentation for the equivalent Command Prompt command:
+
+`tldr cd`
+
+- View documentation for the original PowerShell command:
+
+`tldr get-location`