Chapter 11, 'Promises, async/await', assumes knowledge of DOM manipulation not yet taught

DOM manipulation is not covered in this tutorial until four chapters later, in Part 2. From the comments, it looks like some are ready for it and some are not. I don't know if the async stuff could be explained well without using DOM examples, and I haven't looked at the DOM chapter much, so don't know if it requires stuff from Part 1 beyond Chapter 10, but maybe it could be moved up, or referenced, or some short primer or in-context explanations provided to get people unfamiliar with the subject through the async chapter.

Review Chapter 11, “Promises, async/await,” alongside the DOM chapter in Part 2 and the existing comments. Determine whether the chapter should move, reference later material, or add a primer, then define a clear teaching approach and completion criteria before editing.

Written by the indexing model from the issue text.