Update README.md

fixed typo

Author: pierre01

README.md

@@ -1,7 +1,10 @@
 # MVVM MessageBox Service for WPF (using Dependency Injection)
-This service illustrate how you can have a view model that displays dialog boxes but still can be easily uniyt tested.
+A C# MVVM Service for displaying simple MessageBox messages with custom styles included - 
+Uses MVVM Toolkit with Microsoft.Extensions.DependencyInjection but can be adapted to any MVVM / DI Library.
+This service illustrate how you can have a view model that displays dialog boxes but still can be easily unit tested.
+
 In the example the MainViewModel is unit tested at 100% code coverage even with a complex path that display mutiple dialogs with various choices.
-A C# MVVM Service for displaying simple MessageBox messages with custom styles included - Uses MVVM Toolkit with Microsoft.Extensions.DependencyInjection but can be adapted to any MVVM / DI Library.
+
 Include samples and an Example to unit test code involving a complex path with multiple MessageBoxes
 
 ![image](https://user-images.githubusercontent.com/2603287/160229368-ef56548c-b44d-453b-9a7e-9d2dff79dc5e.png)