scores increment to verify paper

src/scores.re.c

@@ -217,7 +217,7 @@ int main(void) {
 		" size 840, 480 fontscale 1\n"
 		"set output \"score.png\"\n");
 	printf("$Data <<EOD\n"
-		"# date, key\n");
+		"# date, key, key score\n");
 	while(score_tree_next(&it)) {
 		line = score_tree_key(&it);
 		score = scrs.list.data + *score_tree_value(&it);