docs(readme): update nuget badge

Author: MarkPieszak

README.md

@@ -1,6 +1,6 @@
 # ASP.NET Core & Vue.js Starter
 
-[![NuGet](https://img.shields.io/nuget/v/aspdotnet-vuejs.svg)](https://www.nuget.org/packages/aspdotnet-vuejs/)
+[![NuGet](https://img.shields.io/nuget/v/aspdotnet-vuejs.svg)](https://www.nuget.org/packages/aspnetcore-vuejs/)
 
 ### Made with :heart: by [Trilon.io](https://trilon.io)
 <p>