Update README.md

README.md

@@ -1,6 +1,8 @@
 # eShopOnWeb
 
-Sample ASP.NET Core reference application, powered by Microsoft, demonstrating a single-process (monolithic) application architecture and deployment model. This reference application is meant to support the [Architecting Modern Web Applications with ASP.NET Core and Azure eBook](https://aka.ms/webappebook), updated to **ASP.NET Core 2.0**.
+Sample ASP.NET Core reference application, powered by Microsoft, demonstrating a single-process (monolithic) application architecture and deployment model. This reference application is meant to support the [Architecting Modern Web Applications with ASP.NET Core and Azure eBook](https://aka.ms/webappebook), updated to **ASP.NET Core 2.1**.
+
+Read the book online in the .NET docs here: https://docs.microsoft.com/en-us/dotnet/standard/modern-web-apps-azure-architecture/
 
 ![image](https://user-images.githubusercontent.com/1712635/32811862-c998c6c8-c956-11e7-85bc-5a86e0659656.png)
 
@@ -9,8 +11,8 @@ The **eShopOnWeb** sample is related to the [eShopOnContainers](https://github.c
 The goal for this sample is to demonstrate some of the principles and patterns described in the [eBook](https://aka.ms/webappebook). It is not meant to be an eCommerce reference application, and as such it does not implement many features that would be obvious and/or essential to a real eCommerce application.
 
 > ### VERSIONS
-> #### The `master` branch is currently running ASP.NET Core 2.0.
-> #### The `netcore2.1` branch is **beta** and is targeting ASP.NET Core 2.1 RC1.
+> #### The `master` branch is currently running ASP.NET Core 2.1.
+> #### Older versions are tagged.
 
 
 ## Topics (eBook TOC)