Update README.md with WinAppDriver Notice (#624)

Author: Dor-bl

README.md

@@ -6,7 +6,7 @@
 [![Build Status](https://dev.azure.com/AppiumCI/dotnet-client/_apis/build/status/appium.appium-dotnet-driver?branchName=master)](https://dev.azure.com/AppiumCI/dotnet-client/_build/latest?definitionId=13&branchName=master)
 
 This driver is an extension of the [Selenium](http://docs.seleniumhq.org/) C# client. It has 
-all the functionalities of the regular driver, but add Appium specific methods on top of this.
+all the functionalities of the regular driver, but add Appium-specific methods on top of this.
 
 ## Appium server compatibility for v5.x 
 
@@ -15,6 +15,13 @@ In case you are using the latest beta client v5.x please be aware you will eithe
 Regardless, it's highly recommended you move to appium 2.x since appium 1.x is no longer maintained. <br/>
 For more details about how to migrate to 2.x, see the following link : [appium 2.x migrating](https://appium.github.io/appium/docs/en/2.0/guides/migrating-1-to-2/)
 
+## WinAppDriver Notice!
+
+Due to the fact that [WinAppDriver](https://github.com/microsoft/WinAppDriver) has been abandoned by MS, running Appium dotnet-client 5.x with WAD will not work since it has not been updated to support the W3C protocol. <br/>
+In order to run appium on Windows Applications, you will need to use [appium-windows-driver](https://github.com/appium/appium-windows-driver) which will basically act as a proxy to WAD.
+Examples of running Windows Applications with dotnet-client can be found here: [windows Integration test 5.0.0](https://github.com/appium/dotnet-client/tree/release/5.0.0/test/integration/Windows) <br/>
+Regardless, feel free to open an issue on the [WAD](https://github.com/microsoft/WinAppDriver/issues) repository that will help get MS to open-source that project.
+
 ## NuGet
 
 NuGet Package: [](http://www.nuget.org/packages/Appium.WebDriver/)
@@ -54,7 +61,7 @@ JetBrains Rider
 - From the menu `Build -> Rebuild Solution`
 - Run tests in Appium.Net.Integration.Tests
 
-Visual studio
+Visual Studio
 
 - Open with [Visual Studio](https://www.visualstudio.com/)
 - build solution
@@ -68,7 +75,7 @@ Visual studio
 
 
 ### To Release a New Version
-- update assemblyInfo.cs, RELEASE_NOTES.md, and appium-dotnet-driver.nuspec with new new version number and release details, then check it in
+- update assemblyInfo.cs, RELEASE_NOTES.md, and appium-dotnet-driver.nuspec with the new version number and release details, then check it in
 - pull new code
 - `Rebuild All` with `Release` target.
 - `NuGet pack appium-dotnet-driver.nuspec`