Updated the README.MD to include a warning that the current NuGet package is outdated.

Author: lecode-official

.vscode/settings.json

@@ -12,6 +12,7 @@
     "cSpell.words": [
         "Neumann",
         "Xunit",
+        "paket",
         "vvvcccaaa"
     ]
 }

README.md

@@ -7,9 +7,21 @@ from the command line via well-defined .NET data structures.
 
 ## Using the Project
 
-If you want to you can download and manually build the solution. The project was built using Visual Studio
-Code and .NET Core 2.0. To build the solution, clone the repository and build it using the command line
-tools of .NET Core:
+You can always get the latest stable version from NuGet:
+
+```bash
+Install-Package System.CommandLine.Parser -Version 0.1.1     # Using the Visual Studio Package Manager
+dotnet add package System.CommandLine.Parser --version 0.1.1 # Using the .NET Command Line Interface
+paket add System.CommandLine.Parser --version 0.1.1          # Using the packet Command Line Interface
+```
+
+**__But please be aware that the current 0.1.1 version on NuGet is outdated and should only be used for
+legacy projects. The next release is a complete rewrite of the original code for .NET Core and will work
+on all supported .NET Core platforms (e.g. Windows, macOS, and Linux).__**
+
+If you want to go ahead and use the new version, you can download and manually build the solution. The
+project was built using Visual Studio Code and .NET Core 2.0. To build the solution, clone the repository
+and build it using the command line tools of .NET Core:
 
 ```bash
 git clone https://github.com/lecode-official/command-line-parser
@@ -20,6 +32,5 @@ dotnet test ./test/System.CommandLine.Parser.Tests/System.CommandLine.Parser.Tes
 
 ## Contributions
 
-Currently I am not accepting any contributors, but if you want to help, I would greatly appreciate feedback
-and bug reports. To file a bug, please use GitHub's issue system. Alternatively, you can clone the repository
-and send me a pull request.
+I always greatly appreciate feedback and bug reports. To file a bug, please use GitHub's issue system.
+Alternatively, you can clone the repository and send me a pull request.