Added link for SD card

Author: wlamont

README.md

@@ -12,7 +12,7 @@ The following is the parts list:
 
 * [Arduino Uno ($25)](https://www.adafruit.com/products/50)
 
-* [SD card]
+* [SD card](http://www.amazon.com/SanDisk-Class-SDHC-Memory-Card/dp/B007JRB0TC)
 
 * [Shield stacking headers ($2)](https://www.adafruit.com/products/85)
 

README.md~

@@ -4,11 +4,16 @@ This project was intended to create a low cost accelerometer with portable DAQ s
 
 The following is the parts list:
 
-*[+/- 3G triple axis accelerometer ($15)](https://www.adafruit.com/products/163)
-*[Illuminated latching on/off switch ($2)](https://www.adafruit.com/products/1478)
-*[SD Data logging shield for Arduino ($20)](https://www.adafruit.com/products/1141)
-*[Arduino Uno ($25)](https://www.adafruit.com/products/50)
-*[SD card]
-*[Shield stacking headers ($2)](https://www.adafruit.com/products/85)
+* [+/- 3G triple axis accelerometer ($15)](https://www.adafruit.com/products/163)
+
+* [Illuminated latching on/off switch ($2)](https://www.adafruit.com/products/1478)
+
+* [SD Data logging shield for Arduino ($20)](https://www.adafruit.com/products/1141)
+
+* [Arduino Uno ($25)](https://www.adafruit.com/products/50)
+
+* [SD card]
+
+* [Shield stacking headers ($2)](https://www.adafruit.com/products/85)