trying to integrate espn content

i tried using the [espn-rb](https://github.com/rondale-sc/EspnRb) gem because i thought it would be a good learning exercise but now im a bit lost. I have the espn api key and added to the ```config/app.yml``` file but I don't know how to 'call' it if you get what i mean. 

moreover, where does this
```
require 'espn_rb'
espn = Espn.headlines
 
espn.all #=> HeadlineResponse
espn.nba(:news) #=> HeadlineResponse
```
go? I first thought about coding it into the posts controller index part but the local server blew up saying ```Espn``` was an uninitialized constant. After googing this most blog posts say the best way is to create a Class...kind of like how the httparty gem tackles it. I probably should have gone with your suggestion. [This](https://github.com/jaxzin/api-samples-ruby-padrino) is more or less what I'd hope to have after this branch. Help!