Merge branch 'fix-display' into 'master'

fix display grid > 10

See merge request mhart/DancingDroids!51

src/main.rs

@@ -205,7 +205,11 @@ fn display_grid(
     h: &HashMap<robot::Position, u32>,
 ) {
     for i in (0..w.y).rev() {
+        if i < 10 {
             print!("{}  ", i);
+        } else {
+            print!("{} ", i);
+        }
         for j in 0..w.x {
             match h.get(&robot::Position { x: j, y: i }) {
                 Some(id) => match robot_pool[(id - 1) as usize].o {
@@ -222,7 +226,11 @@ fn display_grid(
     }
     print!("   ");
     for j in 0..w.x {
+        if j < 10 {
             print!("{}  ", j);
+        } else {
+            print!("{} ", j);
+        }
     }
     println!();
 }