Merge pull request #606 from tkstanczak/patch-1

Mention Nethermind next to other clients

README.md

@@ -24,6 +24,7 @@ The following clients make use of the tests from this library. You can use these
 - [ethereumjs-vm](https://github.com/ethereumjs/ethereumjs-vm) (JavaScript): [Docs](https://github.com/ethereumjs/ethereumjs-vm#testing), Test location: ``ethereumjs-testing`` dependency
 - [Trinity](https://github.com/ethereum/py-evm) (Python): [Docs](https://py-evm.readthedocs.io/en/latest/contributing.html#running-the-tests), Test location: `fixtures`
 - [Pantheon](https://github.com/PegaSysEng/pantheon) (Java): [Docs](https://github.com/PegaSysEng/pantheon/blob/master/docs/development/building.md#ethereum-reference-tests), Test Location: ``ethereum/referencetests/src/test/resources``
+- [Nethermind](https://github.com/NethermindEth/nethermind) (C#) [Docs](https://nethermind.readthedocs.io), Test Location: ``src/tests``
 
 Using the Tests
 ---------------