Added .NET SDK :)

supporting-docs/projects/2016-04-18-matrix-dotnet-sdk.md

@@ -0,0 +1,10 @@
+---
+layout: project
+title: Matrix .NET SDK
+categories: projects sdk
+author: Half-Shot
+maturity: Alpha
+---
+# {{ page.title }}
+
+The .NET SDK provides a object oritented library to interact with Matrix. It is currently mature enough to be used for simple clients and bots.