A how-to is an informal, often short, description of how to accomplish a specific task. A how-to is usually meant to help non-experts, may leave out details that are only important to experts, and may also be greatly simplified from an overall discussion of the topic.
If you installed Kali offline from a CD/DVD or USB (or have chosen not to connect to internet during installation), you probably have an empty sources.list file with just 2 …