Before executing any commands I think it’s better to first talk about the concept of VCS and Git. It will help you understand why we need it and how can it improve an existing workflow.

The Git index, along with the need to use the "git add" command before performing a commit, is often a source of confusion for beginners. These "git add" examples will make things clear.

Perform a git init command in the root folder of the existing project. Add all of the existing project’s files to the Git index and then commit. Add the GitHub repo as a remote reference for the ...