GitHub: How to keep a fork project up to date?

Question

GitHub

I just recently, a couple of days ago, used GitHub for the first time. First time in first grade.
Registered, made a fork of the project and made a small change. Made a commit.
Meanwhile, the author of the parent project made changes to the project. I need these changes in my fork.
How are they received? I understand that fork is independent.

Answer 1

git remote add upstream ...
And each time to update
git fetch upstream
git rebase upstream/master