Update README.md

Author: glibnub

README.md

@@ -6,7 +6,7 @@ products:
 - azure
 - azure-active-directory
 page_type: sample
-description: "A sample that shows how to call an ASP.NET Core Web API from a WPF application using Azure Aactive Directory V2."
+description: "A sample that shows how to call an ASP.NET Core Web API from a WPF application using Azure Active Directory V2."
 ---
 
 # Calling an ASP.NET Core Web API from a WPF application using Azure AD V2