Update repo from upstream

UpdateRepoFromUpstream.sh

# clone the forked repo
git clone https://github.com/rajbos/a-forked-repo.git

# make sure you are inside the git repo
cd a-forked-repo

# add the parent repo as a remote
git remote add github-parent $parentUrl

# fetch the changes from the parent
git fetch github-parent

# make sure you are on the right branch
git checkout main

# merge in any changes from the branch
git merge github-parent/main

# push the changes back to your repo
git push