message: docs: update readme to acknowledge Angular 6
diff: @@ -33,9 +33,6 @@ The packages from this repo are published as scoped packages under [@nguniversal
  - [@nguniversal/hapi-engine](https://github.com/angular/universal/blob/master/modules/hapi-engine/README.md)
  - [@nguniversal/module-map-ngfactory-loader](https://github.com/angular/universal/tree/master/modules/module-map-ngfactory-loader) (for handling lazy loaded modules on the server).
  -
  -The 1.x packages work with Angular 4.x while the 5.x packages will work with Angular 5.x. We will match the major version with Angular starting from 5.0 to avoid confusion.
  -
  # Upgrading from Angular2-Universal
  > If you're coming from the original `angular2-universal` (2.x) here are some helpful steps for porting your application to Angular 4 & platform-server.
  @@ -71,7 +68,7 @@ The 1.x packages work with Angular 4.x while the 5.x packages will work with Ang
  # Getting Started
  [* **NodeJS** :: Example repo](https://github.com/angular/universal-starter)
  - - Minimal webpack & universal example with Angular 5.0
  + - Minimal webpack & universal example
  [* ASP.NET Core :: Universal Starter repo](https://github.com/MarkPieszak/aspnetcore-angular2-universal)
  - **Installation**: Clone the above repo, `npm i && dotnet restore` *(VStudio will run these automatically when opening the project)*
  