I have instruction like this, please explain some meaning or concept of this or show me some example about in text comment (talk bubbles) and terminal comments, how it look like? Thank you

In the textbox, answer the following questions: 1. What do the in-text comments (the blue "talk bubbles" inside the paper) point out or mark? 2. What main issues do the terminal comments (in the comments section under the blue "talk bubble\" to the right of the screen) highlight? 3. How can you use the in-text and terminal comments to help you on the 2nd paper