Add keymap to reset zoom

README.md

@@ -2,6 +2,7 @@
 A simple python script that draws an interactive mandelbrot set in the terminal
 
 ## Keybindings
-- Arrows - Move around
-- `(`/`)` - Zooming
-- `+`/`-` - Change the number of iterations to run
+- Arrow keys - Move around
+- `(`/`)` - Zoom in and out
+- `=` - Reset zoom
+- `+`/`-` - Change the number of iterations to run per pixel

mandelbrot.py

@@ -91,6 +91,9 @@ def handle_keyboard(char):
 	elif char == 41:  # Zoom in
 		ZOOM_LEVEL += 1
 		return False
+	elif char == 61:  # Zoom reset
+		ZOOM_LEVEL = 0
+		return False
 	elif char == 43:  # Iterations up
 		MAX_ITERS += 1
 		return False