Update readme.md

Author: Jim Lindblom

readme.md

@@ -1,5 +1,7 @@
 This is a repository for the SparkFun SX1509 I/O Expander Breakout **Eagle files** and an **Arduino Library**.
 
+<div align="center"><a href="https://www.sparkfun.com/products/11502"><img src="https://dlnmh9ip6v2uc.cloudfront.net/images/products/1/1/5/0/2/11502-03_medium.jpg"></a></div>
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 # SX1509 16-I/O Expander
@@ -23,4 +25,4 @@ The SparkFun breakout and Arduino library exist to help you get the most out of
 
 - Jim Lindblom
 <br>SparkFun Electronics
-<br>November 14, 2012
+<br>November 14, 2012