I'm working with [Redmine](http://www.redmine.org/) for the first time and was able to successfully [install](http://www.redmine.org/projects/redmine/wiki/RedmineInstall) it locally. I haven't used Ruby before and I come from a Java background. 

I am able to run the application by going to - 

```
http://localhost:3000/projects

```

The question is, where can I find the html file (if it exists) that corresponds to `http://localhost:3000/projects`. In Java, we can do this by looking at web.xml or the relevant Spring configuration file and see how the URL is mapped to a servlet or controller. How to do this in Ruby?