The answer is:
The Grimms embellished stories with more details in their final editions.
According to the excerpt from "How the Grimm Brothers Saved the Fairy Tale," the author directs attention to the fact that the Grimm brothers enhanced, developed and expanded their stories in later later editions rather than the first. For example, he mentions how "Rapunzel" improved and became more refined from the first to the seventh edition.
Rubrics usually help writers stay on task and more organized.
His face was as red as an apple.
engages the reader
teaches the reader something useful (a new way of thinking about the essay in question)
helps the reader to see the bigger picture that the summarized essay is a part of, and
helps you as the writer to gain a deeper understanding of the issues and arguments of the essay being summarized.