Adding some documentation for readline().
Adding some documentation for readline().

dansut/Cosa,mikaelpatel/Cosa,jeditekunum/Cosa,kc9jud/Cosa,dansut/Cosa,kc9jud/Cosa,jeditekunum/Cosa,rrobinet/Cosa,rrobinet/Cosa,dansut/Cosa,kc9jud/Cosa,kc9jud/Cosa,rrobinet/Cosa,mikaelpatel/Cosa,jeditekunum/Cosa,dansut/Cosa,mikaelpatel/Cosa,rrobinet/Cosa,jeditekunum/Cosa,mikaelpatel/Cosa