Update the manuals in Docs/

Docs/list-submodules.md

@@ -1,4 +1,4 @@
-## list-submodules.ps1 - Lists the submodules in a Git repository
+## The list-submodules.ps1 PowerShell Script
 
 This PowerShell script lists the submodules in the given Git repository.
 
@@ -32,4 +32,43 @@ Author: Markus Fleschutz | License: CC0
 ## Related Links
 https://github.com/fleschutz/PowerShell
 
+## Source Code
+<#
+.SYNOPSIS
+	Lists the submodules in a Git repository
+.DESCRIPTION
+	This PowerShell script lists the submodules in the given Git repository.
+.PARAMETER RepoDir
+	Specifies the path to the repository (current working directory by default)
+.EXAMPLE
+	PS> ./list-submodules C:\MyRepo
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$RepoDir = "$PWD")
+
+try {
+	"⏳ Step 1/3: Checking requirements... "
+	if (-not(test-path "$RepoDir" -pathType container)) { throw "Can't access directory: $RepoDir" }
+
+	& git --version
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	"⏳ Step 2/3: Fetching latest updates... "
+	& git -C "$RepoDir" fetch
+	if ($lastExitCode -ne "0") { throw "'git fetch' failed" }
+
+	"⏳ Step 3/3: Listing submodules... "
+	& git -C "$RepoDir" submodule
+	if ($lastExitCode -ne "0") { throw "'git submodule' failed" }
+
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}
+
 *Generated by convert-ps2md.ps1 using the comment-based help of list-submodules.ps1*