[Documentation] console-args.md is out of date

[keegan-caruso]

I believe this article is out of date:

https://github.com/dotnet/BenchmarkDotNet/blob/master/docs/articles/guides/console-args.md

For using a local build of ILC packages it recommends ilcPath instead of ilcPackages. As far as I can tell, ilcPath isn't a command line option anymore.