The Startup.cs File in ASP.NET Core 1.0 - What Does It Do?

I'm working on a presentation for my day job on ASP.NET 5 ASP.NET Core 1.0 [http://www.hanselman.com/blog/ASPNET5IsDeadIntroducingASPNETCore10AndNETCore10.aspx] and its new features, as most of my coworkers haven't been exposed to it yet. Part of this process is to demo the new features

An Overview of Tag Helpers in ASP.NET Core

I was a little hesitant about the new Tag Helpers feature coming out with ASP.NET Core and ASP.NET MVC 6 when I last wrote about it [http://www.exceptionnotfound.net/tag-helpers-in-asp-net-5/], but a few recent updates have totally changed my mind. These things are going to be awesome.