update README

README.md

@@ -1,4 +1,5 @@
-Bitcore Node
+<img src="http://bitcore.io/css/images/node-illustration.png"></img>
+<img src="http://bitcore.io/css/images/bitcore-node-logo.png"></img>
 =======
 
 [![NPM Package](https://img.shields.io/npm/v/bitcore-node.svg?style=flat-square)](https://www.npmjs.org/package/bitcore-node)

test/services/transaction.js

@@ -5,7 +5,6 @@ var should = require('chai').should();
 var Promise = require('bluebird');
 
 var bitcore = require('bitcore');
-var _ = bitcore.deps._;
 
 var TransactionService = require('../../lib/services/transaction');