Update README.md (#433)

Author: hudat

README.md

@@ -82,6 +82,7 @@ it'll be converted to `/docs/index.html`.
 * [The State Of JavaScript](http://stateofjs.com/)
 * [FlashMobile](http://www.flashmobile.mx/en/)
 * [ZBT MIT Website](http://zbt.mit.edu) ([source](https://github.com/Slava/zbt-website))
+* [Husam Machlovi, Portfolio & Blog](http://husammachlovi.com)
 * [Edit this file to add yours!](https://github.com/gatsbyjs/gatsby/blob/master/README.md)
 
 *Note, for the sites that have made their source available, you can