update read me & add some fake configuration into the config file

Author: land-pack

README.md

@@ -22,7 +22,9 @@ More about BWS at https://blog.bitpay.com/announcing-the-bitcore-wallet-suite/
 # Getting Started
 ```
  git clone https://github.com/bitpay/bitcore-wallet-service.git
- cd bitcore-wallet-service && npm start
+ cd bitcore-wallet-service
+ npm install
+ npm start
 ```
 
 

config.js

@@ -71,7 +71,7 @@ var config = {
     defaultUnit: 'btc',
     subjectPrefix: '',
     pushServerUrl: 'https://fcm.googleapis.com/fcm',
-    authorizationKey: '',
+    authorizationKey: 'You_have_to_put_something_here',
   },
   fiatRateServiceOpts: {
     defaultProvider: 'BitPay',