TODO.md

TODO:

• Write documentation for the class MovieLibra::Movie
• Write documentation for the class MovieLibra::MovieList
• Write documentation for the class MovieLibra::MyMovieList
• Write documentation for the module MovieLibra::Rate
• Write documentation for the module MovieLibra::RateList
• Write documentation for the module MovieLibra::Export
• Write documentation for the class MovieLibra::Fetcher::Imdb
• Write documentation for the class MovieLibra::Fetcher::Tmdb
• Refactoring with rubocops
• Add more examples to README.md