Git & GitHub Crash Course: Create a Repository From Scratch!

git clone URL

git status

git add README.md

git status

git commit -m "Initial commit"

git push origin master

git add index.html (adding to git after creating index.html)

git diff README.md (what lines have changed)

git commit -m "Second commit" (m stands for message here)

git log

git checkout README.md (undo if you mess up your code)

https://www.udemy.com/course/git-and-github-crash-course-creating-a-repository-from-scratch/learn/lecture/16293114#overview