Update README.md

Update README.md

Update state of the project.

Create Wiktionary loader, works crudely

It is now possible to change between loaders

Conflict resolved, hopefuly

Made it (almost) posible to change between loaders

Update TODO

Bound (dummy) actions to clicks on the listbox

Created blank load from a file loader

Created wiktionary loader

Fixed the custon Checkbutton and used it in kindleloader

Created a new CheckButton widget that makes it easier to get the value

Update TODO and expanded gitignore

Add .gitignore