Update release notes for -rc1

RELEASE.md

@@ -1,4 +1,4 @@
-liboqs-dotnet version 0.1.0
+liboqs-dotnet version 0.2.0-rc1
 ===========================
 
 About
@@ -13,17 +13,11 @@ The **Open Quantum Safe (OQS) project** has the goal of developing and prototypi
 Release notes
 =============
 
-This release of liboqs-dotnet was released on April 23, 2019.  Its release page on GitHub is https://github.com/open-quantum-safe/liboqs-dotnet/releases/tag/0.1.0.
+This release of liboqs-dotnet was released on TODO.  Its release page on GitHub is https://github.com/open-quantum-safe/liboqs-dotnet/releases/tag/0.2.0.
 
 What's New
 ----------
 
-This is the first release of liboqs-dotnet.
+This is the second release of liboqs-dotnet.
 
-This solution implements a .NET wrapper in C# for the C OQS library. It contains the following projects:
-
-- **dotnetOQS**: A C# class library targeting .NET Core 1.1, wrapping the master branch of the OQS library.
-- **dotnetOQSUnitTest**: Unit tests for the dotnetOQS project.
-- **dotnetOQSSample**: A sample program illustrating the usage of the dotnetOQS library.
-
-liboqs-dotnet can be compiled against liboqs master branch, and makes available all digital signature schemes and key encapsulation mechanisms from liboqs.
+This release updates for compatibility with liboqs 0.2.0, which contains new/updated algorithms based on NIST Round 2 submissions.