Git LFS replaces larege files (audio, samples, video) with text pointers inside of git whlie having the file contents ona remote server.

brew install git-lfs - install git lfs 

git lfs install - to 
gif lfs track "*.jpegs"
git add .gitattributes - makes sure the file type is being tracked

then you can add stuff to git

git add file.psd
git commit -m "add design file"
git push origin master

github LFS Test Server - https://goo.gl/dsCk6n

man git is so long I passed out reading through it

# your_comment_here
your_command_here