Update readme

Author: Krzysztof-Cieslak

README.md

@@ -36,3 +36,15 @@ Visual Studio Code extension adding first class support for F# unit testing for
 #### Showing test failures in VSCode error panel and editor ruler.
 
 ![](https://github.com/Krzysztof-Cieslak/Neptune-public/blob/master/Img/Screenshot%20from%202018-03-27%2000.48.44.png)
+
+## Support matrix
+
+The below table represents current state of the support for different types of runtimes and different operating systems:
+
+|                                  | Linux / MacOS | Windows |
+| ------------- |:-------------:| -----:|
+| **.Net Core**                        | Running and Debugging | Running and Debugging |
+| **Full Framework, new project file** | Running (only Expecto) | Running |
+| **Full Framework, old project file** | Running | Running |
+
+The state of support is impacted by multiple 3rd part vendors - for example Debugging support is provided by C# extension team, or running XUnit and NUnit tests on full framework with new project file on Linux / MacOS is not possible due to [bug in `dotnet test`](https://github.com/Microsoft/vstest/issues/1284)

release/README.md

@@ -36,3 +36,15 @@ Visual Studio Code extension adding first class support for F# unit testing for
 #### Showing test failures in VSCode error panel and editor ruler.
 
 ![](https://github.com/Krzysztof-Cieslak/Neptune-public/blob/master/Img/Screenshot%20from%202018-03-27%2000.48.44.png)
+
+## Support matrix
+
+The below table represents current state of the support for different types of runtimes and different operating systems:
+
+|                                  | Linux / MacOS | Windows |
+| ------------- |:-------------:| -----:|
+| **.Net Core**                        | Running and Debugging | Running and Debugging |
+| **Full Framework, new project file** | Running (only Expecto) | Running |
+| **Full Framework, old project file** | Running | Running |
+
+The state of support is impacted by multiple 3rd part vendors - for example Debugging support is provided by C# extension team, or running XUnit and NUnit tests on full framework with new project file on Linux / MacOS is not possible due to [bug in `dotnet test`](https://github.com/Microsoft/vstest/issues/1284)