Update README.md

Author: ciarajekel

README.md

@@ -1,6 +1,6 @@
 SparkFun SGP30 Library
 ===========================================================
-![]()
+ [![SparkX SGP30 Breakout (Qwiic) (SPX-14813)](https://cdn.sparkfun.com/assets/parts/1/3/0/8/1/14813-SGP30_Breakout__Qwiic_-01.jpg)](https://www.sparkfun.com/products/14813) 
 
 [*SparkX SGP30 Breakout (Qwiic) (SPX-14813)*](https://www.sparkfun.com/products/14813)