Moved Porter to architecture section and updated description.

README.md

 * [Patchwork](http://patchwork2.org/) - A library for redefining userland functions.
 * [PHP Option](https://github.com/schmittjoh/php-option) - An option type library.
 * [Pipeline](https://github.com/thephpleague/pipeline) - A pipeline pattern implementation.
+* [Porter](https://github.com/ScriptFUSION/Porter) - Data import abstraction library for consuming Web APIs and other data sources.
 * [Ruler](https://github.com/bobthecow/Ruler) - A simple stateless production rules engine.
 * [RulerZ](https://github.com/K-Phoen/rulerz) - A powerful rule engine and implementation of the Specification pattern.
 
 * [Knapsack](https://github.com/DusanKasan/Knapsack) - Collection library inspired by Clojure's sequences.
 * [PHP Collections](https://github.com/schmittjoh/php-collection) - A simple collections library.
 * [PINQ](https://github.com/TimeToogo/Pinq) - A PHP library based on .NET's LINQ (Language Integrated Query).
-* [Porter](https://github.com/ScriptFUSION/Porter) - Data import abstraction framework.
 * [Serializer](https://github.com/schmittjoh/serializer) - A library for serialising and de-serialising data.
 * [Totem](https://github.com/Wisembly/Totem) - A library to manage and create data changesets.
 * [YaLinqo](https://github.com/Athari/YaLinqo) - Yet Another LINQ to Objects for PHP.