Start cookiedough from the terminal, for example in your ~/projects directory:

$  cookiedough

You can browse the template list in the left pane. They're grouped by languages or application names. It's also possible to filter the list with the search box.

The right hand white section is the content area, where details of the cookiecutter template are shown. Among them is the file list / directory structure, and a preview of the readme.

Though you might often want to just hit the link to view the online version of the repository. Alternatively use →Template→Copy repo URL to utilize the URL with commandline cookiecutter.

Hitting the Roll out button will start the creation process. (A variables input window will appear beforehand.)