Created by: victorfeijo
Hey, first of all I would like to say thank you for all the work done on administrate! It's an awesome project and is being very helpful for me and my team.
About this PR, I was looking into how to setup a custom page without a related model, for example a HELP page and ended up on this doc page which explain very well how to do it. But, I ran into some problems because I didn't have an example on how the controller should look like, so I just "cloned" from a model related one and forgot to overwrite the index action, which took me a couple minutes to find out where the problem was. After digging into the project repository, I found the /spec/example_app folder and there was this controller example. I hope by adding this extra example to the docs will help other people as well :)