The answer isn’t in that file just so you know
Answer:
The Summaries
Explanation:
The area below the horizontal margin near the bottom of the page should be reserved for a summary of the notes on that page. A summary is brief at most, only a few sentences. The page summary provides a concise review of the important material on the page.
It makes you less reliant on yourself to fix the issues. So you don't feel the need to fix or look for any issues because you expect the computer to fix it.