README file updated with a basic example usage

Added a basic example of how to use the gem with a rails4 app. :smile: 

Hey just fixed the typo ... Sorry about that 

Cheers 

Sam

Sent from my iPhone

> On 25 Sep 2014, at 6:57 pm, Marthyn Olthof <notifications@github.com> wrote:
> 
> In README.md:
> 
> > @@ -33,6 +33,66 @@ Include it in your JavaScript manifest (e.g. `application.js`)
> >  ```
> >  \* *be sure that angular is required before angularjs-file-upload*
> >  
> > +## Read more
> > +
> > +read more about the options in [angular-file-upload-wiki](https://github.com/nervgh/angular-file-upload/wiki/Introduction) 
> > +
> > +## Basic example 
> > +
> > +\* *assuming thet you have setup an ```angularjs``` correctly in your rails app
> that* ;)
> 
> —
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