Merge pull request #469 from JayBizzle/patch-2

Typo

README.md

 * [Knp RAD Bundle](http://rad.knplabs.com/) - A Rapid Application Development (RAD) bundle for Symfony 2.
 
 ## Components
-*Standalone component from web development frameworks and development groups.*
+*Standalone components from web development frameworks and development groups.*
 
 * [Symfony2 Components](http://symfony.com/doc/master/components/index.html) - The components that make Symfony 2.
 * [Zend Framework 2 Components](https://packages.zendframework.com/) - The components that make Zend Framework.