Write about GDPR alternative

[mx-psi]

When fa-scrapper was originally written the EU GDPR was not a thing. Now, users can write to FilmAffinity and it is legally obligated to give a machine-readable dump of the user data and transmit the data to Letterboxd (article 20) in the span of a month under normal conditions (article 12).

fa-scrapper could have a document with this alternative in both Spanish and English so that people know about this alternative.