I put out a survey on twitter a few months ago on "What was challenging you most about ASP.NET Core"
What is challenging you most about #aspnetcore— Shayne Boyer (@spboyer) April 26, 2016
...ironically it was Documentation.
Looking over the list of issues there is a range of topics to cover. Everything from simple variable renaming to full tutorials.
Now I am asking you, the community, what do you want to have in the docs, what's most important to you?
ASP.NET is open source, and the Docs are included in that umbrella. So create issues, +1 to get them prioritized, comment, and share.
ASP.NET on Github - https://github.com/aspnet
ASP.NET Docs on - https://github.com/aspnet/docs