Parent task for exploratory work on developing models for text summarization using LLMs.

Initially, we will start by focusing on one specific aspect of text simplification to improve readability of articles as a follow-up to the work on measuring readability (T293028).

Project-page on metawiki: https://meta.wikimedia.org/wiki/Research:Develop_a_model_for_text_simplification_to_improve_readability_of_Wikipedia_articles