$ git clone git@github.com:titoBouzout/LineEndings.git ~/.config/sublime-text-3/Packages/LineEndings
$ cd ~/.config/sublime-text-3/Packages/LineEndings
$ curl https://gist.github.com/magnetikonline/5268506/raw/LineEndings.sublime-settings
Now update ~/.config/sublime-text-3/Packages/LineEndings/LineEndings.sublime-settings
to suit.