re-order quickstart steps

Author: ibroadfo

README.md

@@ -28,16 +28,16 @@ $ ember install ember-cli-deploy
 $ ember install ember-cli-deploy-build
 ```
 
-- Set up firebase in your app, answering `dist` when asked 'What directory should be the public root?'.
+- Install this plugin
 
 ```bash
-$ firebase init
+$ ember install ember-cli-deploy-firebase
 ```
 
-- Install this plugin
+- Set up firebase in your app, answering `dist` when asked 'What directory should be the public root?'.
 
 ```bash
-$ ember install ember-cli-deploy-firebase
+$ firebase init
 ```
 
 - Run the pipeline