Update readme setup instructions

Author: Will Anderson

README.md

@@ -7,8 +7,10 @@ Running the Example
 ---
 
 * Make sure you have https://github.com/Microsoft/hybrid-mobile-deploy cloned beside the react-native project in a folder called `website`. This is hacky, and will be cleaned up as soon as React Native's packager supports symlinks.
-* Start the server with `gulp serve`, after installing the prerequisites described in the [project readme](https://github.com/Microsoft/hybrid-mobile-deploy/blob/master/README.md)
-* `cd` into `Examples/HybridMobileDeployCompanion` and run `npm install`
+* Start the Hybrid Mobile Deploy server with `gulp serve`, after installing the prerequisites described in the [project readme](https://github.com/Microsoft/hybrid-mobile-deploy/blob/master/README.md)
+* From the root of this project, run `npm install`
+* `cd` into `Examples/HybridMobileDeployCompanion`
 * Open `index.ios.js` and add a deployment key (generate one using the UI at http://localhost:4000/)
+* Run `npm start` to launch the packager
 * Open `HybridMobileDeployCompanion.xcodeproj` in Xcode
 * Launch the project