Add kylegach.com to list of sites

Thanks for the great tool! Be sure to check the [Colophon](https://kylegach.com/colophon/). :)

README.md

@@ -51,6 +51,7 @@ it'll be converted to `/docs/index.html`.
 * [iamdustan.com](http://iamdustan.com/) ([source](https://github.com/iamdustan/iamdustan.github.io))
 * [React Hardware](http://iamdustan.com/react-hardware) ([source](https://github.com/iamdustan/react-hardware/tree/master/docs))
 * [peterp.me](https://www.peterp.me) ([source](https://github.com/peterpme/peterpme.github.io))
+* [kylegach.com](https://kylegach.com) ([source](https://github.com/kylegach/kylegach_com))
 * [Edit this file to add yours!](https://github.com/gatsbyjs/gatsby/blob/master/README.md)
 
 ### Videos and blogs