Updated the Markdown manuals

docs/check-xml-files.md

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+*check-xml-files.ps1*
+================
+
+This PowerShell script verifies each XML file in the given directory tree for validity.
+
+Parameters
+----------
+```powershell
+PS> ./check-xml-files.ps1 [[-path] <String>] [<CommonParameters>]
+
+-path <String>
+    Specifies the path to the directory tree (current working dir by default)
+    
+    Required?                    false
+    Position?                    1
+    Default value                "$PWD"
+    Accept pipeline input?       false
+    Accept wildcard characters?  false
+
+[<CommonParameters>]
+    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
+    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
+```
+
+Example
+-------
+```powershell
+PS> ./check-xml-files.ps1 C:\Windows
+...
+✔️ Checked 3607 XML files within C:\Windows in 174 sec
+
+```
+
+Notes
+-----
+Author: Markus Fleschutz | License: CC0
+
+Related Links
+-------------
+https://github.com/fleschutz/PowerShell
+
+Script Content
+--------------
+```powershell
+<#
+.SYNOPSIS
+	Checks XML files in a directory tree
+.DESCRIPTION
+	This PowerShell script verifies each XML file in the given directory tree for validity.
+.PARAMETER path
+	Specifies the path to the directory tree (current working dir by default)
+.EXAMPLE
+	PS> ./check-xml-files.ps1 C:\Windows
+	...
+	✔️ Checked 3607 XML files within C:\Windows in 174 sec
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$path = "$PWD")
+
+try {
+	$stopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	$path = Resolve-Path "$path"
+ 	[int]$count = 0
+
+	Write-Progress "Checking all *.xml files under $path..."
+	Get-ChildItem -path "$path" -attributes !Directory -recurse -force | Where-Object { $_.Name -like "*.xml*" } | Foreach-Object {
+		& $PSScriptRoot/check-xml-file.ps1 "$($_.FullName)"
+                $count++
+        }
+	Write-Progress -completed "Done."
+
+        [int]$elapsed = $stopWatch.Elapsed.TotalSeconds
+        "✔️ Checked $count XML files within $path in $elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}
+```
+
+*(generated by convert-ps2md.ps1 using the comment-based help of check-xml-files.ps1 as of 12/07/2023 20:24:16)*