Update cmake required version

Commit migrated from https://github.com/dotnet/corefx/commit/81c91fab23b26592334ac6ff4bef34f102e3c3ce

diff --git a/docs/libraries/building/windows-instructions.md b/docs/libraries/building/windows-instructions.md
index e4d2c45..3c59bf2 100644 (file)
--- a/docs/libraries/building/windows-instructions.md
+++ b/docs/libraries/building/windows-instructions.md
@@ -4,7 +4,7 @@ Building CoreFX on Windows
 ## Required Software
 
 1. **[Visual Studio 2019](https://visualstudio.microsoft.com/vs/preview/)** (Community, Professional, Enterprise) with the latest update must be installed. The Community version is completely free.
-2. **[CMake](https://cmake.org/)** must be installed from [the CMake download page](https://cmake.org/download/#latest) and added to your path. CMake 3.14.3 or later is required to build with VS 2019.
+2. **[CMake](https://cmake.org/)** must be installed from [the CMake download page](https://cmake.org/download/#latest) and added to your path. CMake 3.16.0-RC1 or later is required.
 
 ## Recommended Software
 **[.NET Core SDK](https://dotnet.microsoft.com/download/dotnet-core/3.0)** >= v3.0.100 should be installed, which will add the `dotnet` toolchain to your path.