Add MetaComponent (#145)

* Adding MetaComponent

* Update README.md

Author: Matthew Holloway

README.md

@@ -86,6 +86,7 @@
 * [Hedron](http://github.com/jsbros/hedron) - No-frills flex-box grid system.
 
 #### Helpers
+* [MetaComponent](https://github.com/springload/metacomponent) - Migrate legacy HTML and CSS to styled components.
 * [styco](https://github.com/agreon/styco) - VS Code extension to easily refactor JSX inline styles to styled components.
 * [react-components-cli](https://github.com/yannvr/react-components-cli) - Client to generate styled components.
 * [theme-miner](http://github.com/doubco/theme-miner) - Makes it very easy and readable to create complex design systems in React with styled-components.