OSX auto-generates some hidden files that will get picked up by Git, for example .DS_Store. If you are working with others you don't want to be adding these auto-generated files to the repository, to help manage that you can create a global .gitingore file and add any auto-generated files to that list. You can reference this gist for instrucitons: https://gist.github.com/subfuzion/db7f57fff2fb6998a16c
OSX auto-generates some hidden files that will get picked up by Git, for example .DS_Store. If you are working with others you don't want to be adding these auto-generated files to the repository, to help manage that you can create a global .gitingore file and add any auto-generated files to that list. You can reference this gist for instrucitons: https://gist.github.com/subfuzion/db7f57fff2fb6998a16c