Adding Rundeck, an (old school) orchestration tool

README.md

@@ -72,6 +72,7 @@ A curated list of amazingly awesome open source sysadmin resources inspired by [
 ## Cloud Orchestration
 
 * [Cloudify](http://www.getcloudify.org/) -  Open source TOSCA-based cloud orchestration software platform written in Python and YAML.
+* [Rundeck](http://rundeck.org/) - Simple orchestration tool.
 * [Salt](http://www.saltstack.com/) - It's written in Python.
 
 ## Cloud Storage