removing +1 from pseudo-algorithm

Author: howcom

css3-multicol/Overview.src.html

@@ -796,7 +796,7 @@ <h3>Pseudo-algorithm</h3>
 (21)      N := 1;
 (22)      W := available-width;
 (23)    else
-(24)      N := floor(available-width/column-gap) + 1;
+(24)      N := floor(available-width/column-gap);
 (25)      W := (available-width - ((N - 1) * column-gap))/N;
 (26)    fi
 (27)  elsif (column-count = auto) then