I am following an article online on how to model a lego character and I am baffled at one of the first steps. It says to create a cylinder, make it's subdivision axis 12 then to delete the caps. Then is says to "fill the caps with "cleaner, quad-faced topology". I know this is a lot better than triangular topology, and I know this is important for modelling the rest of the character I just don't know how to do it.

Here is what is wants you to do to the caps of the cylinder:

Here is a link to the article:

https://www.creativebloq.com/3d/creat...rhero-21410592

Thank you in advance!