docs: updated README.md to show nuget badges

Author: laolubenson

README.md

@@ -1,10 +1,11 @@
 # appium-dotnet-driver
 
-[![NuGet version](https://badge.fury.io/nu/Appium.WebDriver.svg)](https://badge.fury.io/nu/Appium.WebDriver)
-[![NuGet Downloads](https://img.shields.io/nuget/dt/Appium.Webdriver.svg)](https://www.nuget.org/packages/Appium.Webdriver)
-
+[![NuGet Badge](https://buildstats.info/nuget/Appium.Webdriver)](https://www.nuget.org/packages/Appium.Webdriver/)
 [![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)
 
+[![NuGet Badge](https://buildstats.info/nuget/Appium.Webdriver?includePreReleases=true)](https://www.nuget.org/packages/Appium.Webdriver)
+
+
 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.