Update README.md

Author: Tewr

README.md

@@ -1,3 +1,5 @@
+[![NuGet](https://img.shields.io/nuget/dt/Tewr.BlazorWorker.BackgroundService.svg?label=Tewr.BlazorWorker.BackgroundService)](https://www.nuget.org/packages/Tewr.BlazorWorker.BackgroundService)
+[![NuGet](https://img.shields.io/nuget/dt/Tewr.BlazorWorker.Core.svg?label=Tewr.BlazorWorker.Core)](https://www.nuget.org/packages/Tewr.BlazorWorker.Core)
 [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=AC77J8GFQ6LYA&item_name=BlazorWorker+Project&currency_code=EUR&source=url)
 
 # BlazorWorker
@@ -33,7 +35,7 @@ And then in a `.razor` View:
 ```
 
 ## BlazorWorker.BackgroundService
-A high-level API that abstracts the complexity of messaging by exposing a strongly typed interface with [Expressions](https://docs.microsoft.com/en-us/dotnet/api/system.linq.expressions.expression). Mimic [Task.Run](https://docs.microsoft.com/en-us/dotnet/api/system.threading.tasks.task.run) as closely as possible to enable multi-threading.
+A high-level API that abstracts the complexity of messaging by exposing a strongly typed interface with [Expressions](https://docs.microsoft.com/en-us/dotnet/api/system.linq.expressions.expression). Mimics [Task.Run](https://docs.microsoft.com/en-us/dotnet/api/system.threading.tasks.task.run) as closely as possible to enable multi-threading.
 
 The starting point of a BlazorWorker is a service class that must be defined by the caller. The public methods that you expose in your service can then be called from the IWorkerBackgroundService interface. If you declare a public [event](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/event) on your service, it can be used to call back into blazor during a method execution (useful for progress reporting).