HyperDev changed its name to Gomix, so reflect that in the README (parse-community#3191)

Author: AndrewLane

README.md

@@ -124,7 +124,7 @@ We have provided a basic [Node.js application](https://github.com/ParsePlatform/
 * [Digital Ocean](https://www.digitalocean.com/community/tutorials/how-to-run-parse-server-on-ubuntu-14-04)
 * [Pivotal Web Services](https://github.com/cf-platform-eng/pws-parse-server)
 * [Back4app](http://blog.back4app.com/2016/03/01/quick-wizard-migration/)
-* [HyperDev](https://hyperdev.com/blog/use-parse-server-apps-backend-hyperdev/)
+* [Gomix](https://gomix.com/#!/project/parse-server)
 
 ### Parse Server + Express