Merge pull request #21 from interledgerjs/greenkeeper/initial

Update dependencies to enable Greenkeeper 🌴

Author: adrianhopebailie

README.md

@@ -4,6 +4,6 @@
 [![NPM Package](https://img.shields.io/npm/v/btp-packet.svg?style=flat)](https://npmjs.org/package/btp-packet)
 [![CircleCI](https://circleci.com/gh/interledgerjs/btp-packet.svg?style=shield)](https://circleci.com/gh/interledgerjs/btp-packet)
 [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
-[![Known Vulnerabilities](https://snyk.io/test/github/interledgerjs/btp-packet/badge.svg)](https://snyk.io/test/github/interledgerjs/btp-packet)
+[![Known Vulnerabilities](https://snyk.io/test/github/interledgerjs/btp-packet/badge.svg)](https://snyk.io/test/github/interledgerjs/btp-packet) [![Greenkeeper badge](https://badges.greenkeeper.io/interledgerjs/btp-packet.svg)](https://greenkeeper.io/)
 
 This implements the encoding for the BTP protocol as defined [IL-RFC 23: BTP v2.0](https://interledger.org/rfcs/0023-bilateral-transfer-protocol/).