fix 1991/fine Makefile, README.md, source

1991/fine/fine.c

@@ -1 +1 @@
-main(a,b){while((a=getchar())+1)putchar((b=64^a&223)&&b<27?a&96|(b+12)%26+1:a);}
+int main(int a, char **b){while((a=getchar())+1)putchar((b=64^a&223)&&(int)b<27?a&96|((int)b+12)%26+1:a);}