[Feature request] Add keybinding to switch between styles

[gonzalezzfelipe]

I use this package with different projects that use different docstring styles, and it is really slow to have to open the package config to switch between them. It would be awesome to have a keybinding that opens a prompt to change the style.

[spadarian]

I added a partial solution for this. Now you can create a configuration file for each project.

See: https://github.com/spadarian/docblock-python#project-configuration-file