v2.3 doc

README.md

@@ -1,7 +1,7 @@
 # GoQuorum for ibet Network
 
 <p>
-  <img alt="Version" src="https://img.shields.io/badge/version-2.2-blue.svg?cacheSeconds=2592000" />
+  <img alt="Version" src="https://img.shields.io/badge/version-2.3-blue.svg?cacheSeconds=2592000" />
 </p>
 
 This project is [GoQuorum](https://github.com/ConsenSys/quorum) fork for [ibet Network](https://github.com/BoostryJP/ibet-Network)
@@ -47,4 +47,3 @@ The go-ethereum binaries (i.e. all code inside of the `cmd` directory) is licens
 in our repository in the `COPYING` file.
 
 Any project planning to use the `crypto/secp256k1` sub-module must use the specific [secp256k1 standalone library](https://github.com/ConsenSys/goquorum-crypto-secp256k1) licensed under 3-clause BSD.
-