README.md in serviceworker-rails-0.5.4 vs README.md in serviceworker-rails-0.5.5

@@ -1,10 +1,9 @@
 # ServiceWorker::Rails
 
 [![Build Status](https://travis-ci.org/rossta/serviceworker-rails.svg?branch=master)](https://travis-ci.org/rossta/serviceworker-rails)
 [![Code Climate](https://codeclimate.com/github/rossta/serviceworker-rails/badges/gpa.svg)](https://codeclimate.com/github/rossta/serviceworker-rails)
-[![Coverage Status](https://coveralls.io/repos/github/rossta/serviceworker-rails/badge.svg?branch=master)](https://coveralls.io/github/rossta/serviceworker-rails?branch=master)
 
 Turn your Rails app into a Progressive Web App. Use [Service Worker](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) with the Rails asset pipeline.
 
 ## Why?
 
@@ -98,13 +97,15 @@
 
 ```javascript
 // app/assets/javascripts/serviceworker.js.erb
 console.log('[Service Worker] Hello world!');
 
+var CACHE_NAME = 'v1-cached-assets'
+
 function onInstall(event) {
   event.waitUntil(
-    caches.open('cached-assets-v1').then(function prefill(cache) {
+    caches.open(CACHE_NAME).then(function prefill(cache) {
       return cache.addAll([
         '<%= asset_path "application.js" %>',
         '<%= asset_path "application.css" %>',
         '/offline.html',
         // you get the idea ...
@@ -237,10 +238,10 @@
   );
 
   // See https://jakearchibald.com/2014/offline-cookbook/#on-network-response for more examples
 }
 
-self.addEventListener('install', onInstall);
+self.addEventListener('fetch', onFetch);
 ```
 
 ## Configuration
 
 When `serviceworker-rails` is required in your Gemfile, it will insert a middleware into the Rails