Let\'s say I have ignored a directory, but I want to unignore specific subdirectories therein. So I have the setup:
/uploads/
/uploads/rubbish/
/uploads/rubb
Even if you add something to .gitignore, you can force git to add it to the index
git add --force uploads/rubbish/stuff/KEEP_ME/
However, "KEEP_ME" seems to be a directory and git usually doesnt like empty folder, so you should can add a "placeholder"-holder file instead, if the folder is empty
git add --force uploads/rubbish/stuff/KEEP_ME/.keep_me