Update the manuals in Docs/

Docs/open-default-browser.md

@@ -1,4 +1,4 @@
-## The open-default-browser.ps1 PowerShell Script
+## The PowerShell Script: open-default-browser.ps1
 
 This PowerShell script launches the default Web browser, optional with a given URL.
 
@@ -33,6 +33,7 @@ Author: Markus Fleschutz | License: CC0
 https://github.com/fleschutz/PowerShell
 
 ## Source Code
+```powershell
 <#
 .SYNOPSIS
 	Opens the default browser
@@ -57,5 +58,6 @@ try {
 	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
 	exit 1
 }
+```
 
 *Generated by convert-ps2md.ps1 using the comment-based help of open-default-browser.ps1*