I have a problem with GitHub.
I use the remote repository on GitHub to download a copy into a server to make an installation of a software, but each server needs to make some changes to a file named /www/inc/config.inc.php a other folders like www/images/ because each installation is personalized.  
The problem comes when I call the command "git pull" to synchronize the different server installations with GitHub to get the new changes or versions because the file www/inc/config.inc.php changes it's content to the original one, or the one that is located on GitHub.
I'd like to say GitHub to not synchronize the www/inc/config.inc.php file and the /www/images folder on each server that I ran originally the git clone command to make a new installation.
 
     
    