Since the NuGet package doesn't include Concordion.NUnit.dll and it is required to run Concordion.NET, it would be useful to have a separate download of Concordion.NUnit.dll.

In order to use NuGet, you would then just need to download the single dll (rather than the whole zip file) add it to your addins directory, and get the NuGet package.

The dll could be added to the Downloads section of the release on Github.

We should then add a link to it on the Download page of the documentation.