Update the manuals

Docs/check-date.md

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+## check-date.ps1 - Determines the current date
+
+This script determines and speaks the current date by text-to-speech (TTS).
+
+## Parameters
+```powershell
+check-date.ps1 [<CommonParameters>]
+
+[<CommonParameters>]
+    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
+    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
+```
+
+## Example
+```powershell
+PS> ./check-date
+✔️ It's Sunday, October 17, 2021
+
+```
+
+## Notes
+Author: Markus Fleschutz · License: CC0
+
+## Related Links
+https://github.com/fleschutz/PowerShell
+
+*Generated by convert-ps2md.ps1 using the comment-based help of check-date.ps1*