Minor README.md fixes

* Fix “less-than” character in example
* Remove reference to waffle.io (service
has shut down: https://help.waffle.io/waffle-shutdown/waffle-shutdown-tldr)

Author: 0xradical

README.md

@@ -1,4 +1,4 @@
-Prerender Rails [![Stories in Ready](https://badge.waffle.io/prerender/prerender_rails.png?label=ready&title=Ready)](https://waffle.io/prerender/prerender_rails) [![Build Status](https://travis-ci.org/prerender/prerender_rails.png)](https://travis-ci.org/prerender/prerender_rails) [![Gem Version](https://badge.fury.io/rb/prerender_rails.png)](http://badge.fury.io/rb/prerender_rails)
+Prerender Rails [![Build Status](https://travis-ci.org/prerender/prerender_rails.png)](https://travis-ci.org/prerender/prerender_rails) [![Gem Version](https://badge.fury.io/rb/prerender_rails.png)](http://badge.fury.io/rb/prerender_rails)
 ===========================
 
 Google, Facebook, Twitter, Yahoo, and Bing are constantly trying to view your website... but they don't execute javascript. That's why we built Prerender. Prerender is perfect for AngularJS SEO, BackboneJS SEO, EmberJS SEO, and any other javascript framework.
@@ -148,7 +148,7 @@ Or on heroku:
 As an alternative, you can pass `prerender_service_url` in the options object during initialization of the middleware
 
 ``` ruby
-config.middleware.use Rack::Prerender, prerender_service_url: '<new url>'
+config.middleware.use Rack::Prerender, prerender_service_url: '<new url>'
 ```
 
 ## License