[www] Add tutorial to awesome list (#3855)

This is the first part of a german tutorial series about Gatsby. This part is about the basic creation of a blog. In the next parts I'll cover more advanced features :)

Author: LekoArts

docs/docs/awesome-gatsby.md

@@ -38,3 +38,4 @@ See the [list of official and community plugins](/docs/plugins/)
 * [Michael Cereda's multi-part series of blog posts on building his site with Gatsby](https://medium.com/@michaelcereda/creating-an-isomorphic-universal-website-with-react-part-1-a905350acba8#.akoo25l6j)
 * [Gatsby – Static Site Generator For React](https://codingthesmartway.com/gatsby-static-site-generater-for-react-introduction/)
 * [Construye y Publica Tu Blog Personal con Gatsby y Netlify](https://medium.com/@n370/construye-y-publica-tu-blog-personal-con-gatsby-y-netlify-parte-1-89804ba63625)
+* [Ultra-schnellen Blog mit React und Gatsby erstellen](https://www.lekoarts.de/blog/ultra-schnellen-blog-mit-react-und-gatsby-erstellen)