Document -Message and -Msg aliases added to Write-Information and Write-Host

[KevinMarquette]

Issue Details

Re: PowerShell/PowerShell#5816

Version(s) of document impacted

• Impacts 6.1 document
• Impacts 6 document
• Impacts 5.1 document
• Impacts 5.0 document
• Impacts 4.0 document
• Impacts 3.0 document

Reason(s) for not selecting all version of documents

• The documented feature was introduced in selected version of PowerShell
• This issue only shows up in selected version of the document

I don't see any guidance for adding documentation for new/unreleased features. I was planning on adding this documentation but I was unsure if I should add it to the 6.0 reference or wait until the next one is created.