Merge pull request adafruit#232 from makermelissa/master

Fix Raspberry Pi 1 Model A image

Author: ladyada

_blinka/raspberry_pi_1a.md

@@ -5,7 +5,7 @@ title: "Raspberry Pi 1 Model A Download"
 name: "Raspberry Pi 1 Model A"
 manufacturer: "Raspberry Pi Foundation"
 board_url: "https://www.adafruit.com/product/998"
-board_image: "raspberry_pi_1b.jpg"
+board_image: "raspberry_pi_1a.jpg"
 download_instructions: "https://learn.adafruit.com/circuitpython-on-raspberrypi-linux/installing-circuitpython-on-raspberry-pi"
 downloads_display: true
 blinka: true