I have made a minor change to the course-projects repository and this makes your code out of sync, if you have already created a fork. It is not really important to stay in sync, so there is no need to sync your fork with my new updated code.
However, there's no harm in syncing and you are encouraged to do so. It's just that syncing may lead to unresolved issues that need to be fixed for the syncing to go through, and this requires a little bit higher level of git. It is good exercise for those who want to learn more about git, though, and how to cope with resolving conflicts:-)