Add blog post on deploying Rocket App to Heroku

Author: duelinmarkers

drafts/2017-10-24-this-week-in-rust.md

@@ -16,6 +16,8 @@ If you find any errors in this week's issue, [please submit a PR](https://github
 
 ## News & Blog Posts
 
+* [How to Deploy a Rocket Application to Heroku](http://www.duelinmarkers.com/2017/10/21/how-to-deploy-a-rocket-application-to-heroku.html)
+
 # Crate of the Week
 
 This week's crate is [if_chain](https://crates.io/crates/if_chain) a macro that helps combat rightwards drift where code nests many `if`s and `if let`s. Since the