DOC: need documentation on WG00 widget

[karllark]

Could not find any docs for WG00 widget. Maybe there are there and I just missed them.

[dcorre]

No you did not miss the doc about the widget. I haven't written one and I definitely should add a few words to say that there is a widget and how to use it. To use it, one just needs to go in the widgets/ directory and type "python WG00_widget.py" in the terminal. Does it work for you?

This would be nice to plug it in the documentation but I haven't had time to learn how to do it yet.