message: Setup instructions in README
diff: # XRP-JS
  XRP JS provides a Javascript based SDK for interacting with the Ripple Ledger.
  +# Setup
  +
  +These instructions assume you have Homebrew installed and are using OSX.
  +
  +Install Homebrew: https://brew.sh/
  +
  +```shell
  +# Clone repo
  +$ git clone https://github.com/xpring-eng/xpring-js.git
  +$ cd xpring-js
  +
  +# Pull submodules
  +$ git submodule init
  +$ git submodule update --remote
  +
  +# Install Protocol Buffers
  +$ brew install protobuf
  +
  +# Install GRPC
  +$ brew tap grpc/grpc
  +$ brew install grpc
  +
  +# Install required modules.
  +$ npm i
  +
  +# Run tests
  +$ npm test
  +```
  +
  # Dependencies:
  * AppianJS: Javascript based networking interface (_coming soon_)
  * [Terram(JS)](https://github.com/xpring-eng/terram): Core Ripple SDK functionality implemented in JS.
  