Update README.md

I have this replacement view for the login form:




    @extends('layouts.master')
    
    @section('content')
    {{{ Confide::makeLoginForm()->render() }}}
    @stop




It looks like this in the html source:




![layout-confide](https://f.cloud.github.com/assets/661038/321518/fdb0a366-99e2-11e2-9140-f240241ac82d.png)




It looks like it's related to [this merge](https://github.com/laravel/framework/issues/206) in Laravel 4. Suprisingly, it works as expected with two brackets instead:




    {{ Confide::makeLoginForm()->render() }}




Which seems to be just the opposite of what the comments say. So this just updates the docs to reflect what actually works (I updated my Laravel install just yesterday so I have the latest build).