New to Mirror-list

I am sending this to identify myself according to the instructions on the mirror-list subscription page. I do not have any knowledge or experience about any related projects. I am just trying to follow the instructions from the article at this url: https://www.techrepublic.com/blog/linux-and-open-source/create-a-local-fe... I found this article while looking for a way to alleviate the very slow times for the automatic repository refresh step when using dnf commands. I am not sure I will have the time, resources, or proficiency to complete more than the first few steps.