This is a custom printf function made for Holberton School.
Used prototype: int _printf(const char *format, ...);
You can execute the man using (man ./man_3_printf) commands in the shell.
%c : with a char argument, prints that char
%s : with a string argument, prints that string
%d : with an integer argument, prints that integer
%i : with an integer argument, prints that integer
%% : will print out just one of the percentage signs