Add install link [skip ci]

Author: timheuer

README.md

@@ -6,4 +6,7 @@ This is a very simple menu command that executes the `dotnet new workflow` comma
 
 There are known issues...view the [repo issues](https://github.com/timheuer/AddActionsWorkflow/issues) for things that need to make it smooth over.
 
-Yes, this is a hack, but I do this often and hate going to the terminal every time so there.
+Yes, this is a hack, but I do this often and hate going to the terminal every time so there.
+
+## Installation
+Install from the [Visual Studio Marketplace](https://marketplace.visualstudio.com/items?itemName=TimHeuer.AddActionsWorkflow) or from the Extension Manager directly in Visual Studio.