Add tutorial #286

README.md

@@ -432,6 +432,7 @@
 * [**Ruby**: _Creating a Linux Desktop application with Ruby_](https://iridakos.com/tutorials/2018/01/25/creating-a-gtk-todo-application-with-ruby)
 * [**Rust**: _Let's build a browser engine_](https://limpet.net/mbrubeck/2014/08/08/toy-layout-engine-1.html)
 * [**Rust**: _Building a DNS server in Rust_](https://github.com/EmilHernvall/dnsguide/blob/master/README.md)
+* [**Rust**: _Writing Scalable Chat Service from Scratch_](https://nbaksalyar.github.io/2015/07/10/writing-chat-in-rust.html)
 * [**TypeScript**: _Make your own GraphQL metrics dashboard_](http://all-loops-considered.org/2018/05/09/graphql-metrics-part-1/)
 * [**TypeScript**: _Tiny Package Manager: Learns how npm or Yarn works_](https://github.com/g-plane/tiny-package-manager)