fix: reinstate inclusive ranges

Fixes #39

Author: timClicks

ch2/ch2-mandelbrot/src/main.rs

@@ -52,14 +52,14 @@ fn render_mandelbrot(escape_vals: Vec<Vec<usize>>) {
     let mut line = String::with_capacity(row.len());
     for column in row {
       let val = match column {
-        0..2 => ' ',
-        2..5 => '.',
-        5..10 => '•',
+        0..=2 => ' ',
+        3..=5 => '.',
+        6..=10 => '•',
         11..30 => '*',
-        30..100 => '+',
-        100..200 => 'x',
-        200..400 => '$',
-        400..=700 => '#',
+        31..=100 => '+',
+        101..=200 => 'x',
+        201..=400 => '$',
+        401..=700 => '#',
         _ => '%',
       };