Vertical Garden Code Update

Added debounce code to the buttons

Author: firepixie

Vertical_Garden_Barometer/code.py

@@ -3,7 +3,7 @@
 Visualize air reading changes over time as a color animation on a NeoPixel strip
 Display a "sinking" or "rising" graphic on the screen along with recent reading data
 
-Code by Erin St Blaine for Adafruit Industries
+Code by Erin St Blaine for Adafruit Industries :)
 """
 import time
 import board