Update README to add 32 bit support in 0.7 (dotnet#1559)

* Update README to add 32 bit support in 0.7

Also change .NET Core 2.0 - >2.1 as 2.0 is now out of support.

* Update README.md

* Update README.md

* Update README.md

Author: danmoseley

README.md

@@ -16,11 +16,11 @@ Along with these ML capabilities, this first release of ML.NET also brings the f
 
 [![NuGet Status](https://img.shields.io/nuget/v/Microsoft.ML.svg?style=flat)](https://www.nuget.org/packages/Microsoft.ML/)
 
-ML.NET runs on Windows, Linux, and macOS - any platform where x64 [.NET Core](https://github.com/dotnet/core) or later is available. In addition, .NET Framework on Windows x64 is also supported.
+ML.NET runs on Windows, Linux, and macOS using [.NET Core](https://github.com/dotnet/core), or Windows using .NET Framework. 64 bit is supported on all platforms. 32 bit is supported on Windows, except for TensorFlow, LightGBM, and ONNX related functionality.
 
-The current release is 0.6. Check out the [release notes](docs/release-notes/0.6/release-0.6.md) to see what's new.
+The current release is 0.7. Check out the [release notes](docs/release-notes/0.7/release-0.7.md) and [blog post](https://blogs.msdn.microsoft.com/dotnet/2018/11/08/announcing-ml-net-0-7-machine-learning-net/) to see what's new.
 
-First, ensure you have installed [.NET Core 2.0](https://www.microsoft.com/net/learn/get-started) or later. ML.NET also works on the .NET Framework. Note that ML.NET currently must run in a 64-bit process.
+First, ensure you have installed [.NET Core 2.1](https://www.microsoft.com/net/learn/get-started) or later. ML.NET also works on the .NET Framework 4.6.1 or later, but 4.7.2 or later is recommended.
 
 Once you have an app, you can install the ML.NET NuGet package from the .NET Core CLI using:
 ```