Configurando o upstream para um garfo github
git remote add upstream https://thehttpslinkgoeshere.git
Calm Coyote
git remote add upstream https://thehttpslinkgoeshere.gitgit push --set-upstream origin <branch># checking the url of remotes
git remote -v
# add another url to git
git remote add upstream <url>
# now you can use
git pull upstream master (or other branch names)
upsteam is the standard name used, but you can change it if you want to