Merge pull request #1 from mattvick/master

Fixed typos in README.md Usage instructions code example that cause an errors when executed

README.md

@@ -50,8 +50,9 @@ npm install --save ethjs-signer
 ```js
 const HttpProvider = require('ethjs-provider-http');
 const Eth = require('ethjs-query');
-const eth = new Eth(HttpProvider('http://localhost:8545'));
+const eth = new Eth(new HttpProvider('http://localhost:8545'));
 const sign = require('ethjs-signer').sign;
+const BN = require('bignumber.js');
 
 const address = '0x0F6af8F8D7AAD198a7607C96fb74Ffa02C5eD86B';
 const privateKey = '0xecbcd9838f7f2afa6e809df8d7cdae69aa5dfc14d563ee98e97effd3f6a652f2';