Added a link to a .NET implementation of the multihash protocol

Author: Maurice CGP Peters

README.md

@@ -60,6 +60,7 @@ Because aesthetically I prefer the code first. You already have to write your st
 - [elixir-multihash](//github.com/zabirauf/ex_multihash), [elixir-multihashing](//github.com/candeira/ex_multihashing)
 - [swift-multihash](//github.com/NeoTeo/SwiftMultihash)
 - [ruby-multihash](//github.com/neocities/ruby-multihash)
+- [MultiHash.Net](//github.com/MCGPPeters/MultiHash.Net)
 - [scala-multihash](//github.com/mediachain/scala-multihash)
 
 ## table for Multihash v1.0.0-RC (semver)