make readme example match simpletest

Author: FoamyGuy

README.rst

@@ -98,21 +98,22 @@ See Also:
 Without a Context Manager
 -------------------------
 
-In the example below, we create the `HCSR04` object directly, get the distance every 2 seconds, then
-de-initialize the device.
+In the example below, we create the `HCSR04` object directly, get the distance every 2 seconds.
 
 .. code-block:: python
 
+    import time
     import board
-    from adafruit_hcsr04 import HCSR04
-    sonar = HCSR04(trigger_pin=board.D5, echo_pin=board.D6)
-    try:
-        while True:
-            print(sonar.distance)
-            sleep(2)
-    except KeyboardInterrupt:
-        pass
-    sonar.deinit()
+    import adafruit_hcsr04
+
+    sonar = adafruit_hcsr04.HCSR04(trigger_pin=board.D5, echo_pin=board.D6)
+
+    while True:
+        try:
+            print((sonar.distance,))
+        except RuntimeError:
+            print("Retrying!")
+        time.sleep(2)
 
 
 With a Context Manager