Update README.md

[saanvi-ts]

Added Collection of Asp.NET Core Admin Templates

Application-templates/ASP.NET Core Admin Template - https://themeselection.com/item/category/asp-net-dashboard/

Production-ready, easy-to-use, and highly customizable ASP.NET Core Admin Dashboard Template which offers everything you need to build modern, eye-catching, and responsive ASP.NET web apps easily.

[pleb]

Thanks for the submission @saanvi-ts.

Unfortunately, we don't have a section for theme-based templates. The category you used is for .net starter templates that one might use for a new dotnet project. Whilst these starter templates may include UI elements, it's secondary to their purpose.

Lastly, I can't see dotnet developers using this list to find paid-for UI templates.