Update the link for getting started in README.md (#19932) (#19947)

Co-authored-by: Aditya Patwardhan <adityap@microsoft.com>

README.md

@@ -9,7 +9,7 @@ It includes a command-line shell, an associated scripting language and a framewo
 
 ## Windows PowerShell vs. PowerShell Core
 
-Although this repository started as a fork of the Windows PowerShell code base, changes made in this repository do not make their way back to Windows PowerShell 5.1 automatically.
+Although this repository started as a fork of the Windows PowerShell codebase, changes made in this repository do not make their way back to Windows PowerShell 5.1 automatically.
 This also means that [issues tracked here][issues] are only for PowerShell Core 6 and higher.
 Windows PowerShell specific issues should be reported with the [Feedback Hub app][feedback-hub], by choosing "Apps > PowerShell" in category.
 
@@ -20,7 +20,7 @@ Windows PowerShell specific issues should be reported with the [Feedback Hub app
 
 If you are new to PowerShell and would like to learn more, we recommend reviewing the [getting started][] documentation.
 
-[getting started]: https://github.com/PowerShell/PowerShell/tree/master/docs/learning-powershell
+[getting started]: https://learn.microsoft.com/powershell/scripting/learn/more-powershell-learning
 
 ## Get PowerShell