title: Exclude newly created Makefile from .gitignore
body: <p>I have few folders in git repo. Every folder contains an "arm" folder which is included to <code>.gitignore</code> file. But I have a few Makefiles in "arm" folder and in subfolders of arm folder. When I make changes in Makefiles which is under source control <code>git status</code> show me the changes. But if I create new subfolder in "arm" folder and add Makefile <code>git status</code> output is empty. How can I change <code>.gitignore</code> file to see untracked Makefiles in <code>git status</code> output? </p>