Here in the nestedLists tut: https://commonmark.org/help/tutorial/10-nestedLists.html
The first page says:
To nest one list within another, indent each item in the sublist by four spaces.
But in the exercise the nested list are not all indented by 4 spaces.
And the first page also says:
You can also nest other elements like paragraphs, blockquotes or code blocks.
But it did not mention how many spaces should used when nesting paragraphs, blockquotes or code blocks.
As a user will think they all indent with 4 spaces. Is that correct?
If yes, the exercise for this did not use 4 spaces.
If no, we should add how many spaces should used in case of paragraphs, blockquotes or code blocks.