docs: add .net flagd provider

Signed-off-by: Michael Beemer <beeme1mr@users.noreply.github.com>

docs/usage/flagd_providers.md

@@ -9,7 +9,7 @@ Flagd providers are used for interacting with the `flagd` service via the OpenFe
 | Javascript   | [Javascript Flagd Provider](https://github.com/open-feature/js-sdk-contrib/tree/main/libs/providers/flagd)
 | PHP   | [PHP Flagd Provider](https://github.com/open-feature/php-sdk-contrib/tree/main/src/Flagd)
 | Python   | Not currently available, [help by contributing here](https://github.com/open-feature/python-sdk-contrib)
-| .NET   | Not currently available, [help by contributing here](https://github.com/open-feature/dotnet-sdk-contrib)
+| .NET   | [.NET Flagd Provider](https://github.com/open-feature/dotnet-sdk-contrib/tree/main/src/OpenFeature.Contrib.Providers.Flagd)
 | Ruby  | Not currently available, [help by contributing here](https://github.com/open-feature/ruby-sdk-contrib)
 
 Any (new or existing) `flagd` providers ought to follow [these guidelines](../other_resources/creating_providers.md).