I'm new to IntelliJ. What is the best (and recommend method) for importing project into IntelliJ. Is there a maven plugin for doing this? 

More specially I'm interesting in importing this project. 
<https://github.com/nathanmarz/storm-starter?source=c>

Thanks. 

UPDATE 1 - When I try to use File -> open (the m2-pom.xml file) it just opens the xml file (as shown in the screenshot below. 

![enter image description here](https://i.stack.imgur.com/NlN5d.png)