Move pages under tldr, lint run.sh, update docs

tldr/windows/get-date

@@ -0,0 +1,26 @@
+---
+syntax: markdown
+tags: [tldr, windows]
+source: https://github.com/tldr-pages/tldr.git
+---
+# Get-Date
+
+> Gets the current date and time.
+> This command can only be used through PowerShell.
+> More information: <https://learn.microsoft.com/powershell/module/microsoft.powershell.utility/get-date>.
+
+- Display the current date and time:
+
+`Get-Date`
+
+- Display the current date and time with a .NET format specifier:
+
+`Get-Date -Format "{{yyyy-MM-dd HH:mm:ss}}"`
+
+- Display the current date and time in UTC and ISO 8601 format:
+
+`(Get-Date).ToUniversalTime()`
+
+- Convert a Unix timestamp:
+
+`Get-Date -UnixTimeSeconds {{1577836800}}`