Valid point. Most of it comes from: Page Function – Typst Documentation
Accepts a numbering pattern or function taking one or two numbers:
- The first number is the current page number.
- The second number is the total number of pages. In a numbering pattern, the second number can be omitted. If a function is passed, it will receive one argument in the context of links or references, and two arguments when producing the visible page numbers.
Your input is relevant as this is not likely to be easy to find for everyone looking at the current documentation. Some relevant posts about Typst documentation suggestions, where you are welcome to participate and share your opinion:
- Could we have more examples (including straightforward ones) in the documentation?
- How about a task force to generate a better documentation?
That being said, a lot can be found on the forum (and our Discord) and we are always happy to help.
I’ve moved your post to the Questions category and added the numbering tag.
If your question has been answered, please consider marking 
the reply you found most helpful so others can easily find the solution.