Merge pull request #1063 from sptramer/install/compatibility-table

Clarify install instructions for various platform/PS version combinations.

Author: sptramer

docs-conceptual/azps-2.0.0/install-az-ps.md

@@ -17,18 +17,23 @@ are supported.
 
 ## Requirements
 
-Azure PowerShell works with PowerShell 5.1 or higher on Windows, or PowerShell 6 on any platform.
+Azure PowerShell works with PowerShell 5.1 or higher on Windows, or PowerShell Core 6.x and later on
+all platforms. If you aren't sure if you have PowerShell, or are on macOS or Linux,
+[install the latest PowerShell Core](/powershell/scripting/install/installing-powershell#powershell-core).
+
 To check your PowerShell version, run the command:
 
 ```powershell-interactive
 $PSVersionTable.PSVersion
 ```
 
-If you have an outdated version or need to install PowerShell, see [Installing various versions of PowerShell](/powershell/scripting/setup/installing-powershell). Install
-information for your platform is linked from that page.
+To run Azure PowerShell in PowerShell 5.1 on Windows:
+
+1. Update to [Windows PowerShell 5.1](/powershell/scripting/install/installing-windows-powershell#upgrading-existing-windows-powershell) if needed. If you're on Windows 10, you already
+  have PowerShell 5.1 installed.
+2. Install [.NET Framework 4.7.2 or later](/dotnet/framework/install).
 
-If you are using PowerShell 5 on Windows, you also need .NET Framework 4.7.2 installed. For instructions
-on updating or installing a new version of .NET Framework, see the [.NET Framework installation guide](/dotnet/framework/install).
+There are no additional requirements for Azure PowerShell when using PowerShell Core.
 
 ## Install the Azure PowerShell module